Home / 391,975.20-587,966.04-125,737.92

Finding the Fourth Proportional to 391,975.20, 587,966.04 and 125,737.92

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Solution

The fourth proportional to 391,975.20, 587,966.04 and 125,737.92 is: 188,607.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,975.20 : 587,966.04 = 125,737.92 : x
  2. Step 2: Convert to fraction form
    391,975.20/587,966.04 = 125,737.92/x
  3. Step 3: Cross multiply
    391,975.20x = 587,966.04 × 125,737.92
  4. Step 4: Simplify right side
    391,975.20x = 73,929,626,900.24
  5. Step 5: Solve for x
    x = 73,929,626,900.24/391,975.20
  6. Step 6: Final answer
    x = 188,607.92

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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.