Home / 345,096.30-517,672.13-120,451.76

Finding the Fourth Proportional to 345,096.30, 517,672.13 and 120,451.76

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Solution

The fourth proportional to 345,096.30, 517,672.13 and 120,451.76 is: 180,687.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,096.30 : 517,672.13 = 120,451.76 : x
  2. Step 2: Convert to fraction form
    345,096.30/517,672.13 = 120,451.76/x
  3. Step 3: Cross multiply
    345,096.30x = 517,672.13 × 120,451.76
  4. Step 4: Simplify right side
    345,096.30x = 62,354,518,081.49
  5. Step 5: Solve for x
    x = 62,354,518,081.49/345,096.30
  6. Step 6: Final answer
    x = 180,687.30

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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.