129.95 is what percent of 159.95 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 159.95 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 159.95, so we can write it down as 100%=159.95.
4. We know, that x% equals 129.95 of the output value, so we can write it down as x%=129.95.
5. Now we have two simple equations:
1) 100%=159.95
2) x%=129.95
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=159.95/129.95
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 129.95 is what percent of 159.95

100%/x%=159.95/129.95
(100/x)*x=(159.95/129.95)*x       - we multiply both sides of the equation by x
100=1.2308580223163*x       - we divide both sides of the equation by (1.2308580223163) to get x
100/1.2308580223163=x
81.244138793373=x
x=81.244138793373

now we have:
129.95 is 81.244138793373% of 159.95