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Finding the Fourth Proportional to 149.44, 206.22 and 83.95

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Solution

The fourth proportional to 149.44, 206.22 and 83.95 is: 115.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.44 : 206.22 = 83.95 : x
  2. Step 2: Convert to fraction form
    149.44/206.22 = 83.95/x
  3. Step 3: Cross multiply
    149.44x = 206.22 × 83.95
  4. Step 4: Simplify right side
    149.44x = 17,312.17
  5. Step 5: Solve for x
    x = 17,312.17/149.44
  6. Step 6: Final answer
    x = 115.85

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