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Finding the Fourth Proportional to 132,369.57, 198,591.48 and 53,539.20

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Solution

The fourth proportional to 132,369.57, 198,591.48 and 53,539.20 is: 80,323.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,369.57 : 198,591.48 = 53,539.20 : x
  2. Step 2: Convert to fraction form
    132,369.57/198,591.48 = 53,539.20/x
  3. Step 3: Cross multiply
    132,369.57x = 198,591.48 × 53,539.20
  4. Step 4: Simplify right side
    132,369.57x = 10,632,428,966.02
  5. Step 5: Solve for x
    x = 10,632,428,966.02/132,369.57
  6. Step 6: Final answer
    x = 80,323.82

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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.