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Finding the Fourth Proportional to 132,704.82, 183,129.90 and 72,276.54

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Solution

The fourth proportional to 132,704.82, 183,129.90 and 72,276.54 is: 99,740.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,704.82 : 183,129.90 = 72,276.54 : x
  2. Step 2: Convert to fraction form
    132,704.82/183,129.90 = 72,276.54/x
  3. Step 3: Cross multiply
    132,704.82x = 183,129.90 × 72,276.54
  4. Step 4: Simplify right side
    132,704.82x = 13,235,995,542.55
  5. Step 5: Solve for x
    x = 13,235,995,542.55/132,704.82
  6. Step 6: Final answer
    x = 99,740.13

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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.