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Finding the Fourth Proportional to 172,234.92, 258,302.16 and 67,028.88

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Solution

The fourth proportional to 172,234.92, 258,302.16 and 67,028.88 is: 100,523.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,234.92 : 258,302.16 = 67,028.88 : x
  2. Step 2: Convert to fraction form
    172,234.92/258,302.16 = 67,028.88/x
  3. Step 3: Cross multiply
    172,234.92x = 258,302.16 × 67,028.88
  4. Step 4: Simplify right side
    172,234.92x = 17,313,704,486.38
  5. Step 5: Solve for x
    x = 17,313,704,486.38/172,234.92
  6. Step 6: Final answer
    x = 100,523.78

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1.5x scale

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.