104.5 is what percent of 398.7 - 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 398.7 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 398.7, so we can write it down as 100%=398.7.
4. We know, that x% equals 104.5 of the output value, so we can write it down as x%=104.5.
5. Now we have two simple equations:
1) 100%=398.7
2) x%=104.5
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%=398.7/104.5
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 104.5 is what percent of 398.7

100%/x%=398.7/104.5
(100/x)*x=(398.7/104.5)*x       - we multiply both sides of the equation by x
100=3.8153110047847*x       - we divide both sides of the equation by (3.8153110047847) to get x
100/3.8153110047847=x
26.210183095059=x
x=26.210183095059

now we have:
104.5 is 26.210183095059% of 398.7