Home / 140,127.85-193,381.11-76,469.14

Finding the Fourth Proportional to 140,127.85, 193,381.11 and 76,469.14

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Solution

The fourth proportional to 140,127.85, 193,381.11 and 76,469.14 is: 105,529.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,127.85 : 193,381.11 = 76,469.14 : x
  2. Step 2: Convert to fraction form
    140,127.85/193,381.11 = 76,469.14/x
  3. Step 3: Cross multiply
    140,127.85x = 193,381.11 × 76,469.14
  4. Step 4: Simplify right side
    140,127.85x = 14,787,687,173.95
  5. Step 5: Solve for x
    x = 14,787,687,173.95/140,127.85
  6. Step 6: Final answer
    x = 105,529.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.