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Finding the Fourth Proportional to 120,613.39, 166,337.51 and 75,295.56

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Solution

The fourth proportional to 120,613.39, 166,337.51 and 75,295.56 is: 103,839.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,613.39 : 166,337.51 = 75,295.56 : x
  2. Step 2: Convert to fraction form
    120,613.39/166,337.51 = 75,295.56/x
  3. Step 3: Cross multiply
    120,613.39x = 166,337.51 × 75,295.56
  4. Step 4: Simplify right side
    120,613.39x = 12,524,476,078.26
  5. Step 5: Solve for x
    x = 12,524,476,078.26/120,613.39
  6. Step 6: Final answer
    x = 103,839.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.