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Finding the Fourth Proportional to 168,757.20, 253,135.80 and 149,074.20

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Solution

The fourth proportional to 168,757.20, 253,135.80 and 149,074.20 is: 223,611.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,757.20 : 253,135.80 = 149,074.20 : x
  2. Step 2: Convert to fraction form
    168,757.20/253,135.80 = 149,074.20/x
  3. Step 3: Cross multiply
    168,757.20x = 253,135.80 × 149,074.20
  4. Step 4: Simplify right side
    168,757.20x = 37,736,016,876.36
  5. Step 5: Solve for x
    x = 37,736,016,876.36/168,757.20
  6. Step 6: Final answer
    x = 223,611.30

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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.