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Finding the Fourth Proportional to 147.27, 220.82 and 66

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Solution

The fourth proportional to 147.27, 220.82 and 66 is: 98.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    147.27 : 220.82 = 66 : x
  2. Step 2: Convert to fraction form
    147.27/220.82 = 66/x
  3. Step 3: Cross multiply
    147.27x = 220.82 × 66
  4. Step 4: Simplify right side
    147.27x = 14,573.79
  5. Step 5: Solve for x
    x = 14,573.79/147.27
  6. Step 6: Final answer
    x = 98.96

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