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Finding the Fourth Proportional to 147.26, 220.93 and 83.18

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Solution

The fourth proportional to 147.26, 220.93 and 83.18 is: 124.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    147.26 : 220.93 = 83.18 : x
  2. Step 2: Convert to fraction form
    147.26/220.93 = 83.18/x
  3. Step 3: Cross multiply
    147.26x = 220.93 × 83.18
  4. Step 4: Simplify right side
    147.26x = 18,376.96
  5. Step 5: Solve for x
    x = 18,376.96/147.26
  6. Step 6: Final answer
    x = 124.79

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