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Finding the Fourth Proportional to 132,291.84, 198,450.87 and 42,311.94

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Solution

The fourth proportional to 132,291.84, 198,450.87 and 42,311.94 is: 63,472.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,291.84 : 198,450.87 = 42,311.94 : x
  2. Step 2: Convert to fraction form
    132,291.84/198,450.87 = 42,311.94/x
  3. Step 3: Cross multiply
    132,291.84x = 198,450.87 × 42,311.94
  4. Step 4: Simplify right side
    132,291.84x = 8,396,841,304.39
  5. Step 5: Solve for x
    x = 8,396,841,304.39/132,291.84
  6. Step 6: Final answer
    x = 63,472.10

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Why These Related Problems?

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