Home / 128,252.41-192,381.90-60,768.61

Finding the Fourth Proportional to 128,252.41, 192,381.90 and 60,768.61

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Solution

The fourth proportional to 128,252.41, 192,381.90 and 60,768.61 is: 91,154.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,252.41 : 192,381.90 = 60,768.61 : x
  2. Step 2: Convert to fraction form
    128,252.41/192,381.90 = 60,768.61/x
  3. Step 3: Cross multiply
    128,252.41x = 192,381.90 × 60,768.61
  4. Step 4: Simplify right side
    128,252.41x = 11,690,780,652.16
  5. Step 5: Solve for x
    x = 11,690,780,652.16/128,252.41
  6. Step 6: Final answer
    x = 91,154.47

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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.