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Finding the Fourth Proportional to 168,456.30, 252,465.30 and 68,499.96

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Solution

The fourth proportional to 168,456.30, 252,465.30 and 68,499.96 is: 102,660.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,456.30 : 252,465.30 = 68,499.96 : x
  2. Step 2: Convert to fraction form
    168,456.30/252,465.30 = 68,499.96/x
  3. Step 3: Cross multiply
    168,456.30x = 252,465.30 × 68,499.96
  4. Step 4: Simplify right side
    168,456.30x = 17,293,862,951.39
  5. Step 5: Solve for x
    x = 17,293,862,951.39/168,456.30
  6. Step 6: Final answer
    x = 102,660.83

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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.