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Finding the Fourth Proportional to 168,115.40, 252,464.70 and 89,383.40

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Solution

The fourth proportional to 168,115.40, 252,464.70 and 89,383.40 is: 134,230.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,115.40 : 252,464.70 = 89,383.40 : x
  2. Step 2: Convert to fraction form
    168,115.40/252,464.70 = 89,383.40/x
  3. Step 3: Cross multiply
    168,115.40x = 252,464.70 × 89,383.40
  4. Step 4: Simplify right side
    168,115.40x = 22,566,153,265.98
  5. Step 5: Solve for x
    x = 22,566,153,265.98/168,115.40
  6. Step 6: Final answer
    x = 134,230.14

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1.5x scale

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.