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Finding the Fourth Proportional to 168,204.60, 252,107.10 and 89,278.20

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Solution

The fourth proportional to 168,204.60, 252,107.10 and 89,278.20 is: 133,811.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,204.60 : 252,107.10 = 89,278.20 : x
  2. Step 2: Convert to fraction form
    168,204.60/252,107.10 = 89,278.20/x
  3. Step 3: Cross multiply
    168,204.60x = 252,107.10 × 89,278.20
  4. Step 4: Simplify right side
    168,204.60x = 22,507,668,095.22
  5. Step 5: Solve for x
    x = 22,507,668,095.22/168,204.60
  6. Step 6: Final answer
    x = 133,811.25

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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.