Home / 231,987.20-347,721.60-132,195.20

Finding the Fourth Proportional to 231,987.20, 347,721.60 and 132,195.20

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Solution

The fourth proportional to 231,987.20, 347,721.60 and 132,195.20 is: 198,145.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,987.20 : 347,721.60 = 132,195.20 : x
  2. Step 2: Convert to fraction form
    231,987.20/347,721.60 = 132,195.20/x
  3. Step 3: Cross multiply
    231,987.20x = 347,721.60 × 132,195.20
  4. Step 4: Simplify right side
    231,987.20x = 45,967,126,456.32
  5. Step 5: Solve for x
    x = 45,967,126,456.32/231,987.20
  6. Step 6: Final answer
    x = 198,145.10

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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.