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Finding the Fourth Proportional to 172,737.91, 259,057.65 and 109,462.54

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Solution

The fourth proportional to 172,737.91, 259,057.65 and 109,462.54 is: 164,162.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,737.91 : 259,057.65 = 109,462.54 : x
  2. Step 2: Convert to fraction form
    172,737.91/259,057.65 = 109,462.54/x
  3. Step 3: Cross multiply
    172,737.91x = 259,057.65 × 109,462.54
  4. Step 4: Simplify right side
    172,737.91x = 28,357,108,375.43
  5. Step 5: Solve for x
    x = 28,357,108,375.43/172,737.91
  6. Step 6: Final answer
    x = 164,162.62

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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.