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Finding the Fourth Proportional to 132,520.25, 198,737.98 and 43,757.21

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Solution

The fourth proportional to 132,520.25, 198,737.98 and 43,757.21 is: 65,621.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,520.25 : 198,737.98 = 43,757.21 : x
  2. Step 2: Convert to fraction form
    132,520.25/198,737.98 = 43,757.21/x
  3. Step 3: Cross multiply
    132,520.25x = 198,737.98 × 43,757.21
  4. Step 4: Simplify right side
    132,520.25x = 8,696,218,422.75
  5. Step 5: Solve for x
    x = 8,696,218,422.75/132,520.25
  6. Step 6: Final answer
    x = 65,621.81

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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.