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Finding the Fourth Proportional to 168,744.70, 253,121.10 and 50,419.90

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Solution

The fourth proportional to 168,744.70, 253,121.10 and 50,419.90 is: 75,631.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,744.70 : 253,121.10 = 50,419.90 : x
  2. Step 2: Convert to fraction form
    168,744.70/253,121.10 = 50,419.90/x
  3. Step 3: Cross multiply
    168,744.70x = 253,121.10 × 50,419.90
  4. Step 4: Simplify right side
    168,744.70x = 12,762,340,549.89
  5. Step 5: Solve for x
    x = 12,762,340,549.89/168,744.70
  6. Step 6: Final answer
    x = 75,631.06

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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.