Home / 127,546.30-191,319.45-80,851.90

Finding the Fourth Proportional to 127,546.30, 191,319.45 and 80,851.90

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Solution

The fourth proportional to 127,546.30, 191,319.45 and 80,851.90 is: 121,277.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,546.30 : 191,319.45 = 80,851.90 : x
  2. Step 2: Convert to fraction form
    127,546.30/191,319.45 = 80,851.90/x
  3. Step 3: Cross multiply
    127,546.30x = 191,319.45 × 80,851.90
  4. Step 4: Simplify right side
    127,546.30x = 15,468,541,039.46
  5. Step 5: Solve for x
    x = 15,468,541,039.46/127,546.30
  6. Step 6: Final answer
    x = 121,277.85

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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.