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Finding the Fourth Proportional to 163.93, 225.97 and 122.42

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Solution

The fourth proportional to 163.93, 225.97 and 122.42 is: 168.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.93 : 225.97 = 122.42 : x
  2. Step 2: Convert to fraction form
    163.93/225.97 = 122.42/x
  3. Step 3: Cross multiply
    163.93x = 225.97 × 122.42
  4. Step 4: Simplify right side
    163.93x = 27,663.25
  5. Step 5: Solve for x
    x = 27,663.25/163.93
  6. Step 6: Final answer
    x = 168.75

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