Home / 120,487.74-166,273.50-66,773.66

Finding the Fourth Proportional to 120,487.74, 166,273.50 and 66,773.66

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Solution

The fourth proportional to 120,487.74, 166,273.50 and 66,773.66 is: 92,147.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,487.74 : 166,273.50 = 66,773.66 : x
  2. Step 2: Convert to fraction form
    120,487.74/166,273.50 = 66,773.66/x
  3. Step 3: Cross multiply
    120,487.74x = 166,273.50 × 66,773.66
  4. Step 4: Simplify right side
    120,487.74x = 11,102,690,156.01
  5. Step 5: Solve for x
    x = 11,102,690,156.01/120,487.74
  6. Step 6: Final answer
    x = 92,147.88

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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.