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Finding the Fourth Proportional to 168,744.20, 252,824.70 and 142,500.20

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Solution

The fourth proportional to 168,744.20, 252,824.70 and 142,500.20 is: 213,504.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,744.20 : 252,824.70 = 142,500.20 : x
  2. Step 2: Convert to fraction form
    168,744.20/252,824.70 = 142,500.20/x
  3. Step 3: Cross multiply
    168,744.20x = 252,824.70 × 142,500.20
  4. Step 4: Simplify right side
    168,744.20x = 36,027,570,314.94
  5. Step 5: Solve for x
    x = 36,027,570,314.94/168,744.20
  6. Step 6: Final answer
    x = 213,504.05

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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.