Home / 452,278.20-678,515.70-136,726.86

Finding the Fourth Proportional to 452,278.20, 678,515.70 and 136,726.86

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Solution

The fourth proportional to 452,278.20, 678,515.70 and 136,726.86 is: 205,120.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,278.20 : 678,515.70 = 136,726.86 : x
  2. Step 2: Convert to fraction form
    452,278.20/678,515.70 = 136,726.86/x
  3. Step 3: Cross multiply
    452,278.20x = 678,515.70 × 136,726.86
  4. Step 4: Simplify right side
    452,278.20x = 92,771,321,121.70
  5. Step 5: Solve for x
    x = 92,771,321,121.70/452,278.20
  6. Step 6: Final answer
    x = 205,120.04

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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.