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Finding the Fourth Proportional to 120,647.38, 166,493.59 and 66,932.40

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Solution

The fourth proportional to 120,647.38, 166,493.59 and 66,932.40 is: 92,366.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,647.38 : 166,493.59 = 66,932.40 : x
  2. Step 2: Convert to fraction form
    120,647.38/166,493.59 = 66,932.40/x
  3. Step 3: Cross multiply
    120,647.38x = 166,493.59 × 66,932.40
  4. Step 4: Simplify right side
    120,647.38x = 11,143,815,563.32
  5. Step 5: Solve for x
    x = 11,143,815,563.32/120,647.38
  6. Step 6: Final answer
    x = 92,366.83

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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.