Finding the Fourth Proportional to 124,788.13, 187,269.68 and 72,125.17
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Solution
The fourth proportional to 124,788.13, 187,269.68 and 72,125.17 is: 108,238.32
Step by Step Solution
- Step 1: Write the proportion equation
124,788.13 : 187,269.68 = 72,125.17 : x - Step 2: Convert to fraction form
124,788.13/187,269.68 = 72,125.17/x - Step 3: Cross multiply
124,788.13x = 187,269.68 × 72,125.17 - Step 4: Simplify right side
124,788.13x = 13,506,857,505.85 - Step 5: Solve for x
x = 13,506,857,505.85/124,788.13 - Step 6: Final answer
x = 108,238.32
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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.