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Finding the Fourth Proportional to 132,371.10, 182,672.11 and 71,941.88

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Solution

The fourth proportional to 132,371.10, 182,672.11 and 71,941.88 is: 99,279.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,371.10 : 182,672.11 = 71,941.88 : x
  2. Step 2: Convert to fraction form
    132,371.10/182,672.11 = 71,941.88/x
  3. Step 3: Cross multiply
    132,371.10x = 182,672.11 × 71,941.88
  4. Step 4: Simplify right side
    132,371.10x = 13,141,775,016.97
  5. Step 5: Solve for x
    x = 13,141,775,016.97/132,371.10
  6. Step 6: Final answer
    x = 99,279.79

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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.