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Finding the Fourth Proportional to 148,600.52, 205,072.28 and 81,532.52

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Solution

The fourth proportional to 148,600.52, 205,072.28 and 81,532.52 is: 112,516.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,600.52 : 205,072.28 = 81,532.52 : x
  2. Step 2: Convert to fraction form
    148,600.52/205,072.28 = 81,532.52/x
  3. Step 3: Cross multiply
    148,600.52x = 205,072.28 × 81,532.52
  4. Step 4: Simplify right side
    148,600.52x = 16,720,059,770.55
  5. Step 5: Solve for x
    x = 16,720,059,770.55/148,600.52
  6. Step 6: Final answer
    x = 112,516.83

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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.