5 is what percent of 129.1 - 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 129.1 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 129.1, so we can write it down as 100%=129.1.
4. We know, that x% equals 5 of the output value, so we can write it down as x%=5.
5. Now we have two simple equations:
1) 100%=129.1
2) x%=5
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%=129.1/5
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 5 is what percent of 129.1

100%/x%=129.1/5
(100/x)*x=(129.1/5)*x       - we multiply both sides of the equation by x
100=25.82*x       - we divide both sides of the equation by (25.82) to get x
100/25.82=x
3.8729666924864=x
x=3.8729666924864

now we have:
5 is 3.8729666924864% of 129.1