Home / 120,845.11-166,766.17-67,135.15

Finding the Fourth Proportional to 120,845.11, 166,766.17 and 67,135.15

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Solution

The fourth proportional to 120,845.11, 166,766.17 and 67,135.15 is: 92,646.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,845.11 : 166,766.17 = 67,135.15 : x
  2. Step 2: Convert to fraction form
    120,845.11/166,766.17 = 67,135.15/x
  3. Step 3: Cross multiply
    120,845.11x = 166,766.17 × 67,135.15
  4. Step 4: Simplify right side
    120,845.11x = 11,195,871,502.20
  5. Step 5: Solve for x
    x = 11,195,871,502.20/120,845.11
  6. Step 6: Final answer
    x = 92,646.46

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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.