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Finding the Fourth Proportional to 120,433.80, 166,208.85 and 66,735.66

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Solution

The fourth proportional to 120,433.80, 166,208.85 and 66,735.66 is: 92,100.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,433.80 : 166,208.85 = 66,735.66 : x
  2. Step 2: Convert to fraction form
    120,433.80/166,208.85 = 66,735.66/x
  3. Step 3: Cross multiply
    120,433.80x = 166,208.85 × 66,735.66
  4. Step 4: Simplify right side
    120,433.80x = 11,092,057,302.59
  5. Step 5: Solve for x
    x = 11,092,057,302.59/120,433.80
  6. Step 6: Final answer
    x = 92,100.87

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