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Finding the Fourth Proportional to 120,820.92, 166,728.24 and 67,109.37

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Solution

The fourth proportional to 120,820.92, 166,728.24 and 67,109.37 is: 92,608.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,820.92 : 166,728.24 = 67,109.37 : x
  2. Step 2: Convert to fraction form
    120,820.92/166,728.24 = 67,109.37/x
  3. Step 3: Cross multiply
    120,820.92x = 166,728.24 × 67,109.37
  4. Step 4: Simplify right side
    120,820.92x = 11,189,027,147.61
  5. Step 5: Solve for x
    x = 11,189,027,147.61/120,820.92
  6. Step 6: Final answer
    x = 92,608.36

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