Home / 168,105.35-252,197.45-66,909.52

Finding the Fourth Proportional to 168,105.35, 252,197.45 and 66,909.52

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Solution

The fourth proportional to 168,105.35, 252,197.45 and 66,909.52 is: 100,379.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,105.35 : 252,197.45 = 66,909.52 : x
  2. Step 2: Convert to fraction form
    168,105.35/252,197.45 = 66,909.52/x
  3. Step 3: Cross multiply
    168,105.35x = 252,197.45 × 66,909.52
  4. Step 4: Simplify right side
    168,105.35x = 16,874,410,324.72
  5. Step 5: Solve for x
    x = 16,874,410,324.72/168,105.35
  6. Step 6: Final answer
    x = 100,379.97

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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.