97.8 is what percent of 199.8 - 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 199.8 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 199.8, so we can write it down as 100%=199.8.
4. We know, that x% equals 97.8 of the output value, so we can write it down as x%=97.8.
5. Now we have two simple equations:
1) 100%=199.8
2) x%=97.8
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%=199.8/97.8
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 97.8 is what percent of 199.8

100%/x%=199.8/97.8
(100/x)*x=(199.8/97.8)*x       - we multiply both sides of the equation by x
100=2.0429447852761*x       - we divide both sides of the equation by (2.0429447852761) to get x
100/2.0429447852761=x
48.948948948949=x
x=48.948948948949

now we have:
97.8 is 48.948948948949% of 199.8