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Finding the Fourth Proportional to 88.52, 121.94 and 73.96

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Solution

The fourth proportional to 88.52, 121.94 and 73.96 is: 101.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.52 : 121.94 = 73.96 : x
  2. Step 2: Convert to fraction form
    88.52/121.94 = 73.96/x
  3. Step 3: Cross multiply
    88.52x = 121.94 × 73.96
  4. Step 4: Simplify right side
    88.52x = 9,018.68
  5. Step 5: Solve for x
    x = 9,018.68/88.52
  6. Step 6: Final answer
    x = 101.88

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