Home / 120,591.42-166,426.11-66,893.79

Finding the Fourth Proportional to 120,591.42, 166,426.11 and 66,893.79

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Solution

The fourth proportional to 120,591.42, 166,426.11 and 66,893.79 is: 92,318.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,591.42 : 166,426.11 = 66,893.79 : x
  2. Step 2: Convert to fraction form
    120,591.42/166,426.11 = 66,893.79/x
  3. Step 3: Cross multiply
    120,591.42x = 166,426.11 × 66,893.79
  4. Step 4: Simplify right side
    120,591.42x = 11,132,873,252.86
  5. Step 5: Solve for x
    x = 11,132,873,252.86/120,591.42
  6. Step 6: Final answer
    x = 92,318.95

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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.