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Finding the Fourth Proportional to 172,377.91, 237,855.85 and 96,911.83

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Solution

The fourth proportional to 172,377.91, 237,855.85 and 96,911.83 is: 133,723.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,377.91 : 237,855.85 = 96,911.83 : x
  2. Step 2: Convert to fraction form
    172,377.91/237,855.85 = 96,911.83/x
  3. Step 3: Cross multiply
    172,377.91x = 237,855.85 × 96,911.83
  4. Step 4: Simplify right side
    172,377.91x = 23,051,045,699.71
  5. Step 5: Solve for x
    x = 23,051,045,699.71/172,377.91
  6. Step 6: Final answer
    x = 133,723.90

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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.