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Finding the Fourth Proportional to 132,562.70, 182,876.08 and 78,817.17

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Solution

The fourth proportional to 132,562.70, 182,876.08 and 78,817.17 is: 108,731.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,562.70 : 182,876.08 = 78,817.17 : x
  2. Step 2: Convert to fraction form
    132,562.70/182,876.08 = 78,817.17/x
  3. Step 3: Cross multiply
    132,562.70x = 182,876.08 × 78,817.17
  4. Step 4: Simplify right side
    132,562.70x = 14,413,775,086.29
  5. Step 5: Solve for x
    x = 14,413,775,086.29/132,562.70
  6. Step 6: Final answer
    x = 108,731.76

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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.