Home / 120,884.12-166,820.24-67,167.89

Finding the Fourth Proportional to 120,884.12, 166,820.24 and 67,167.89

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Solution

The fourth proportional to 120,884.12, 166,820.24 and 67,167.89 is: 92,691.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,884.12 : 166,820.24 = 67,167.89 : x
  2. Step 2: Convert to fraction form
    120,884.12/166,820.24 = 67,167.89/x
  3. Step 3: Cross multiply
    120,884.12x = 166,820.24 × 67,167.89
  4. Step 4: Simplify right side
    120,884.12x = 11,204,963,530.09
  5. Step 5: Solve for x
    x = 11,204,963,530.09/120,884.12
  6. Step 6: Final answer
    x = 92,691.77

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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.