Home / 278,461.12-417,691.68-68,096.56

Finding the Fourth Proportional to 278,461.12, 417,691.68 and 68,096.56

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Solution

The fourth proportional to 278,461.12, 417,691.68 and 68,096.56 is: 102,144.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,461.12 : 417,691.68 = 68,096.56 : x
  2. Step 2: Convert to fraction form
    278,461.12/417,691.68 = 68,096.56/x
  3. Step 3: Cross multiply
    278,461.12x = 417,691.68 × 68,096.56
  4. Step 4: Simplify right side
    278,461.12x = 28,443,366,548.62
  5. Step 5: Solve for x
    x = 28,443,366,548.62/278,461.12
  6. Step 6: Final answer
    x = 102,144.84

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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.