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Finding the Fourth Proportional to 123,540.44, 170,485.34 and 66,951.95

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Solution

The fourth proportional to 123,540.44, 170,485.34 and 66,951.95 is: 92,393.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,540.44 : 170,485.34 = 66,951.95 : x
  2. Step 2: Convert to fraction form
    123,540.44/170,485.34 = 66,951.95/x
  3. Step 3: Cross multiply
    123,540.44x = 170,485.34 × 66,951.95
  4. Step 4: Simplify right side
    123,540.44x = 11,414,324,772.23
  5. Step 5: Solve for x
    x = 11,414,324,772.23/123,540.44
  6. Step 6: Final answer
    x = 92,393.43

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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.