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Finding the Fourth Proportional to 172,863.28, 259,404.24 and 67,679.52

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Solution

The fourth proportional to 172,863.28, 259,404.24 and 67,679.52 is: 101,562.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,863.28 : 259,404.24 = 67,679.52 : x
  2. Step 2: Convert to fraction form
    172,863.28/259,404.24 = 67,679.52/x
  3. Step 3: Cross multiply
    172,863.28x = 259,404.24 × 67,679.52
  4. Step 4: Simplify right side
    172,863.28x = 17,556,354,449.16
  5. Step 5: Solve for x
    x = 17,556,354,449.16/172,863.28
  6. Step 6: Final answer
    x = 101,562.08

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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.