Home / 452,279.20-678,517.20-136,727.86

Finding the Fourth Proportional to 452,279.20, 678,517.20 and 136,727.86

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Solution

The fourth proportional to 452,279.20, 678,517.20 and 136,727.86 is: 205,121.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,279.20 : 678,517.20 = 136,727.86 : x
  2. Step 2: Convert to fraction form
    452,279.20/678,517.20 = 136,727.86/x
  3. Step 3: Cross multiply
    452,279.20x = 678,517.20 × 136,727.86
  4. Step 4: Simplify right side
    452,279.20x = 92,772,204,729.19
  5. Step 5: Solve for x
    x = 92,772,204,729.19/452,279.20
  6. Step 6: Final answer
    x = 205,121.54

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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.