Finding the Fourth Proportional to 122,375.53, 168,888.92 and 71,404.68
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Solution
The fourth proportional to 122,375.53, 168,888.92 and 71,404.68 is: 98,544.70
Step by Step Solution
- Step 1: Write the proportion equation
122,375.53 : 168,888.92 = 71,404.68 : x - Step 2: Convert to fraction form
122,375.53/168,888.92 = 71,404.68/x - Step 3: Cross multiply
122,375.53x = 168,888.92 × 71,404.68 - Step 4: Simplify right side
122,375.53x = 12,059,459,966.11 - Step 5: Solve for x
x = 12,059,459,966.11/122,375.53 - Step 6: Final answer
x = 98,544.70
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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.