Finding the Fourth Proportional to 127,687.68, 176,211.84 and 71,104.32
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Solution
The fourth proportional to 127,687.68, 176,211.84 and 71,104.32 is: 98,125.54
Step by Step Solution
- Step 1: Write the proportion equation
127,687.68 : 176,211.84 = 71,104.32 : x - Step 2: Convert to fraction form
127,687.68/176,211.84 = 71,104.32/x - Step 3: Cross multiply
127,687.68x = 176,211.84 × 71,104.32 - Step 4: Simplify right side
127,687.68x = 12,529,423,059.15 - Step 5: Solve for x
x = 12,529,423,059.15/127,687.68 - Step 6: Final answer
x = 98,125.54
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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.