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Finding the Fourth Proportional to 168,761.52, 252,175.44 and 128,557.44

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Solution

The fourth proportional to 168,761.52, 252,175.44 and 128,557.44 is: 192,099.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,761.52 : 252,175.44 = 128,557.44 : x
  2. Step 2: Convert to fraction form
    168,761.52/252,175.44 = 128,557.44/x
  3. Step 3: Cross multiply
    168,761.52x = 252,175.44 × 128,557.44
  4. Step 4: Simplify right side
    168,761.52x = 32,419,028,997.27
  5. Step 5: Solve for x
    x = 32,419,028,997.27/168,761.52
  6. Step 6: Final answer
    x = 192,099.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.