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Finding the Fourth Proportional to 127,591.68, 176,079.24 and 71,006.70

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Solution

The fourth proportional to 127,591.68, 176,079.24 and 71,006.70 is: 97,990.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,591.68 : 176,079.24 = 71,006.70 : x
  2. Step 2: Convert to fraction form
    127,591.68/176,079.24 = 71,006.70/x
  3. Step 3: Cross multiply
    127,591.68x = 176,079.24 × 71,006.70
  4. Step 4: Simplify right side
    127,591.68x = 12,502,805,770.91
  5. Step 5: Solve for x
    x = 12,502,805,770.91/127,591.68
  6. Step 6: Final answer
    x = 97,990.76

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.