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Finding the Fourth Proportional to 111.44, 167.18 and 42.95

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Solution

The fourth proportional to 111.44, 167.18 and 42.95 is: 64.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    111.44 : 167.18 = 42.95 : x
  2. Step 2: Convert to fraction form
    111.44/167.18 = 42.95/x
  3. Step 3: Cross multiply
    111.44x = 167.18 × 42.95
  4. Step 4: Simplify right side
    111.44x = 7,180.58
  5. Step 5: Solve for x
    x = 7,180.58/111.44
  6. Step 6: Final answer
    x = 64.43

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