Home / 248,142.20-372,213.30-129,849.80

Finding the Fourth Proportional to 248,142.20, 372,213.30 and 129,849.80

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Solution

The fourth proportional to 248,142.20, 372,213.30 and 129,849.80 is: 194,774.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,142.20 : 372,213.30 = 129,849.80 : x
  2. Step 2: Convert to fraction form
    248,142.20/372,213.30 = 129,849.80/x
  3. Step 3: Cross multiply
    248,142.20x = 372,213.30 × 129,849.80
  4. Step 4: Simplify right side
    248,142.20x = 48,331,822,562.34
  5. Step 5: Solve for x
    x = 48,331,822,562.34/248,142.20
  6. Step 6: Final answer
    x = 194,774.70

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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.