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Finding the Fourth Proportional to 168,155.70, 252,251.31 and 68,300.92

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Solution

The fourth proportional to 168,155.70, 252,251.31 and 68,300.92 is: 102,458.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,155.70 : 252,251.31 = 68,300.92 : x
  2. Step 2: Convert to fraction form
    168,155.70/252,251.31 = 68,300.92/x
  3. Step 3: Cross multiply
    168,155.70x = 252,251.31 × 68,300.92
  4. Step 4: Simplify right side
    168,155.70x = 17,228,997,115.65
  5. Step 5: Solve for x
    x = 17,228,997,115.65/168,155.70
  6. Step 6: Final answer
    x = 102,458.60

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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.