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Finding the Fourth Proportional to 120,642.32, 166,486.60 and 66,927.34

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Solution

The fourth proportional to 120,642.32, 166,486.60 and 66,927.34 is: 92,359.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,642.32 : 166,486.60 = 66,927.34 : x
  2. Step 2: Convert to fraction form
    120,642.32/166,486.60 = 66,927.34/x
  3. Step 3: Cross multiply
    120,642.32x = 166,486.60 × 66,927.34
  4. Step 4: Simplify right side
    120,642.32x = 11,142,504,825.60
  5. Step 5: Solve for x
    x = 11,142,504,825.60/120,642.32
  6. Step 6: Final answer
    x = 92,359.83

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