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Finding the Fourth Proportional to 120,840.62, 166,759.97 and 67,130.64

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Solution

The fourth proportional to 120,840.62, 166,759.97 and 67,130.64 is: 92,640.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,840.62 : 166,759.97 = 67,130.64 : x
  2. Step 2: Convert to fraction form
    120,840.62/166,759.97 = 67,130.64/x
  3. Step 3: Cross multiply
    120,840.62x = 166,759.97 × 67,130.64
  4. Step 4: Simplify right side
    120,840.62x = 11,194,703,176.83
  5. Step 5: Solve for x
    x = 11,194,703,176.83/120,840.62
  6. Step 6: Final answer
    x = 92,640.24

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