Finding the Fourth Proportional to 163,359.36, 225,418.08 and 91,747.20
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Solution
The fourth proportional to 163,359.36, 225,418.08 and 91,747.20 is: 126,601.12
Step by Step Solution
- Step 1: Write the proportion equation
163,359.36 : 225,418.08 = 91,747.20 : x - Step 2: Convert to fraction form
163,359.36/225,418.08 = 91,747.20/x - Step 3: Cross multiply
163,359.36x = 225,418.08 × 91,747.20 - Step 4: Simplify right side
163,359.36x = 20,681,477,669.38 - Step 5: Solve for x
x = 20,681,477,669.38/163,359.36 - Step 6: Final answer
x = 126,601.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.