Home / 129,310.75-193,966.17-40,571.20

Finding the Fourth Proportional to 129,310.75, 193,966.17 and 40,571.20

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Solution

The fourth proportional to 129,310.75, 193,966.17 and 40,571.20 is: 60,856.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,310.75 : 193,966.17 = 40,571.20 : x
  2. Step 2: Convert to fraction form
    129,310.75/193,966.17 = 40,571.20/x
  3. Step 3: Cross multiply
    129,310.75x = 193,966.17 × 40,571.20
  4. Step 4: Simplify right side
    129,310.75x = 7,869,440,276.30
  5. Step 5: Solve for x
    x = 7,869,440,276.30/129,310.75
  6. Step 6: Final answer
    x = 60,856.81

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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.