Home / 145,251.20-218,314.20-126,005.60

Finding the Fourth Proportional to 145,251.20, 218,314.20 and 126,005.60

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Solution

The fourth proportional to 145,251.20, 218,314.20 and 126,005.60 is: 189,387.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,251.20 : 218,314.20 = 126,005.60 : x
  2. Step 2: Convert to fraction form
    145,251.20/218,314.20 = 126,005.60/x
  3. Step 3: Cross multiply
    145,251.20x = 218,314.20 × 126,005.60
  4. Step 4: Simplify right side
    145,251.20x = 27,508,811,759.52
  5. Step 5: Solve for x
    x = 27,508,811,759.52/145,251.20
  6. Step 6: Final answer
    x = 189,387.85

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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.