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Finding the Fourth Proportional to 134.24, 185.22 and 78.96

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Solution

The fourth proportional to 134.24, 185.22 and 78.96 is: 108.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.24 : 185.22 = 78.96 : x
  2. Step 2: Convert to fraction form
    134.24/185.22 = 78.96/x
  3. Step 3: Cross multiply
    134.24x = 185.22 × 78.96
  4. Step 4: Simplify right side
    134.24x = 14,624.97
  5. Step 5: Solve for x
    x = 14,624.97/134.24
  6. Step 6: Final answer
    x = 108.95

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