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Finding the Fourth Proportional to 172,882.92, 259,144.56 and 72,959.70

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Solution

The fourth proportional to 172,882.92, 259,144.56 and 72,959.70 is: 109,363.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,882.92 : 259,144.56 = 72,959.70 : x
  2. Step 2: Convert to fraction form
    172,882.92/259,144.56 = 72,959.70/x
  3. Step 3: Cross multiply
    172,882.92x = 259,144.56 × 72,959.70
  4. Step 4: Simplify right side
    172,882.92x = 18,907,109,354.23
  5. Step 5: Solve for x
    x = 18,907,109,354.23/172,882.92
  6. Step 6: Final answer
    x = 109,363.66

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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.