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Finding the Fourth Proportional to 172,899, 259,248.87 and 67,660.56

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Solution

The fourth proportional to 172,899, 259,248.87 and 67,660.56 is: 101,451.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,899 : 259,248.87 = 67,660.56 : x
  2. Step 2: Convert to fraction form
    172,899/259,248.87 = 67,660.56/x
  3. Step 3: Cross multiply
    172,899x = 259,248.87 × 67,660.56
  4. Step 4: Simplify right side
    172,899x = 17,540,923,723.57
  5. Step 5: Solve for x
    x = 17,540,923,723.57/172,899
  6. Step 6: Final answer
    x = 101,451.85

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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.