Finding the Fourth Proportional to 115,425.20, 173,137.80 and 62,937.20
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Solution
The fourth proportional to 115,425.20, 173,137.80 and 62,937.20 is: 94,405.80
Step by Step Solution
- Step 1: Write the proportion equation
115,425.20 : 173,137.80 = 62,937.20 : x - Step 2: Convert to fraction form
115,425.20/173,137.80 = 62,937.20/x - Step 3: Cross multiply
115,425.20x = 173,137.80 × 62,937.20 - Step 4: Simplify right side
115,425.20x = 10,896,808,346.16 - Step 5: Solve for x
x = 10,896,808,346.16/115,425.20 - Step 6: Final answer
x = 94,405.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.