129.7 is what percent of 238.5 - 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 238.5 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 238.5, so we can write it down as 100%=238.5.
4. We know, that x% equals 129.7 of the output value, so we can write it down as x%=129.7.
5. Now we have two simple equations:
1) 100%=238.5
2) x%=129.7
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%=238.5/129.7
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 129.7 is what percent of 238.5

100%/x%=238.5/129.7
(100/x)*x=(238.5/129.7)*x       - we multiply both sides of the equation by x
100=1.8388589051658*x       - we divide both sides of the equation by (1.8388589051658) to get x
100/1.8388589051658=x
54.381551362683=x
x=54.381551362683

now we have:
129.7 is 54.381551362683% of 238.5