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Finding the Fourth Proportional to 171,737.78, 237,032.16 and 100,129.28

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Solution

The fourth proportional to 171,737.78, 237,032.16 and 100,129.28 is: 138,198.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,737.78 : 237,032.16 = 100,129.28 : x
  2. Step 2: Convert to fraction form
    171,737.78/237,032.16 = 100,129.28/x
  3. Step 3: Cross multiply
    171,737.78x = 237,032.16 × 100,129.28
  4. Step 4: Simplify right side
    171,737.78x = 23,733,859,517.64
  5. Step 5: Solve for x
    x = 23,733,859,517.64/171,737.78
  6. Step 6: Final answer
    x = 138,198.24

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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.