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Finding the Fourth Proportional to 132,390.10, 198,257.10 and 84,932.20

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Solution

The fourth proportional to 132,390.10, 198,257.10 and 84,932.20 is: 127,187.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,390.10 : 198,257.10 = 84,932.20 : x
  2. Step 2: Convert to fraction form
    132,390.10/198,257.10 = 84,932.20/x
  3. Step 3: Cross multiply
    132,390.10x = 198,257.10 × 84,932.20
  4. Step 4: Simplify right side
    132,390.10x = 16,838,411,668.62
  5. Step 5: Solve for x
    x = 16,838,411,668.62/132,390.10
  6. Step 6: Final answer
    x = 127,187.85

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.