What is 25 percent of 648.37 - 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 648.37 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 648.37 is 100%, so we can write it down as 648.37=100%.
4. We know, that x is 25% of the output value, so we can write it down as x=25%.
5. Now we have two simple equations:
1) 648.37=100%
2) x=25%
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:
648.37/x=100%/25%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 25% of 648.37

648.37/x=100/25
(648.37/x)*x=(100/25)*x       - we multiply both sides of the equation by x
648.37=4*x       - we divide both sides of the equation by (4) to get x
648.37/4=x
162.0925=x
x=162.0925

now we have:
25% of 648.37=162.0925