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Finding the Fourth Proportional to 132.08, 198.12 and 40.79

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Solution

The fourth proportional to 132.08, 198.12 and 40.79 is: 61.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.08 : 198.12 = 40.79 : x
  2. Step 2: Convert to fraction form
    132.08/198.12 = 40.79/x
  3. Step 3: Cross multiply
    132.08x = 198.12 × 40.79
  4. Step 4: Simplify right side
    132.08x = 8,080.32
  5. Step 5: Solve for x
    x = 8,080.32/132.08
  6. Step 6: Final answer
    x = 61.18

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