Home / 454,131.46-681,191.76-138,589.30

Finding the Fourth Proportional to 454,131.46, 681,191.76 and 138,589.30

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Solution

The fourth proportional to 454,131.46, 681,191.76 and 138,589.30 is: 207,882.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,131.46 : 681,191.76 = 138,589.30 : x
  2. Step 2: Convert to fraction form
    454,131.46/681,191.76 = 138,589.30/x
  3. Step 3: Cross multiply
    454,131.46x = 681,191.76 × 138,589.30
  4. Step 4: Simplify right side
    454,131.46x = 94,405,889,184.17
  5. Step 5: Solve for x
    x = 94,405,889,184.17/454,131.46
  6. Step 6: Final answer
    x = 207,882.29

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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.