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Finding the Fourth Proportional to 120,862.82, 166,737.03 and 80,537.24

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Solution

The fourth proportional to 120,862.82, 166,737.03 and 80,537.24 is: 111,105.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,862.82 : 166,737.03 = 80,537.24 : x
  2. Step 2: Convert to fraction form
    120,862.82/166,737.03 = 80,537.24/x
  3. Step 3: Cross multiply
    120,862.82x = 166,737.03 × 80,537.24
  4. Step 4: Simplify right side
    120,862.82x = 13,428,540,202.00
  5. Step 5: Solve for x
    x = 13,428,540,202.00/120,862.82
  6. Step 6: Final answer
    x = 111,105.63

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