Home / 128,251.41-192,380.40-60,767.61

Finding the Fourth Proportional to 128,251.41, 192,380.40 and 60,767.61

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Solution

The fourth proportional to 128,251.41, 192,380.40 and 60,767.61 is: 91,152.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,251.41 : 192,380.40 = 60,767.61 : x
  2. Step 2: Convert to fraction form
    128,251.41/192,380.40 = 60,767.61/x
  3. Step 3: Cross multiply
    128,251.41x = 192,380.40 × 60,767.61
  4. Step 4: Simplify right side
    128,251.41x = 11,690,497,118.84
  5. Step 5: Solve for x
    x = 11,690,497,118.84/128,251.41
  6. Step 6: Final answer
    x = 91,152.97

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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.