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Finding the Fourth Proportional to 168,425.65, 252,419.10 and 68,469.22

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Solution

The fourth proportional to 168,425.65, 252,419.10 and 68,469.22 is: 102,614.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,425.65 : 252,419.10 = 68,469.22 : x
  2. Step 2: Convert to fraction form
    168,425.65/252,419.10 = 68,469.22/x
  3. Step 3: Cross multiply
    168,425.65x = 252,419.10 × 68,469.22
  4. Step 4: Simplify right side
    168,425.65x = 17,282,938,890.10
  5. Step 5: Solve for x
    x = 17,282,938,890.10/168,425.65
  6. Step 6: Final answer
    x = 102,614.65

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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.