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Finding the Fourth Proportional to 106.25, 146.64 and 67.43

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Solution

The fourth proportional to 106.25, 146.64 and 67.43 is: 93.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    106.25 : 146.64 = 67.43 : x
  2. Step 2: Convert to fraction form
    106.25/146.64 = 67.43/x
  3. Step 3: Cross multiply
    106.25x = 146.64 × 67.43
  4. Step 4: Simplify right side
    106.25x = 9,887.94
  5. Step 5: Solve for x
    x = 9,887.94/106.25
  6. Step 6: Final answer
    x = 93.06

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