Home / 124,575.20-186,657.60-71,892.80

Finding the Fourth Proportional to 124,575.20, 186,657.60 and 71,892.80

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Solution

The fourth proportional to 124,575.20, 186,657.60 and 71,892.80 is: 107,720.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,575.20 : 186,657.60 = 71,892.80 : x
  2. Step 2: Convert to fraction form
    124,575.20/186,657.60 = 71,892.80/x
  3. Step 3: Cross multiply
    124,575.20x = 186,657.60 × 71,892.80
  4. Step 4: Simplify right side
    124,575.20x = 13,419,337,505.28
  5. Step 5: Solve for x
    x = 13,419,337,505.28/124,575.20
  6. Step 6: Final answer
    x = 107,720.78

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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.