87.8 is what percent of 118.5 - 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 118.5 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 118.5, so we can write it down as 100%=118.5.
4. We know, that x% equals 87.8 of the output value, so we can write it down as x%=87.8.
5. Now we have two simple equations:
1) 100%=118.5
2) x%=87.8
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%=118.5/87.8
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 87.8 is what percent of 118.5

100%/x%=118.5/87.8
(100/x)*x=(118.5/87.8)*x       - we multiply both sides of the equation by x
100=1.3496583143508*x       - we divide both sides of the equation by (1.3496583143508) to get x
100/1.3496583143508=x
74.092827004219=x
x=74.092827004219

now we have:
87.8 is 74.092827004219% of 118.5