Home / 361,861.20-542,845.26-125,140.32

Finding the Fourth Proportional to 361,861.20, 542,845.26 and 125,140.32

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Solution

The fourth proportional to 361,861.20, 542,845.26 and 125,140.32 is: 187,728.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,861.20 : 542,845.26 = 125,140.32 : x
  2. Step 2: Convert to fraction form
    361,861.20/542,845.26 = 125,140.32/x
  3. Step 3: Cross multiply
    361,861.20x = 542,845.26 × 125,140.32
  4. Step 4: Simplify right side
    361,861.20x = 67,931,829,546.88
  5. Step 5: Solve for x
    x = 67,931,829,546.88/361,861.20
  6. Step 6: Final answer
    x = 187,728.97

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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.