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Finding the Fourth Proportional to 118, 162.86 and 88.84

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Solution

The fourth proportional to 118, 162.86 and 88.84 is: 122.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    118 : 162.86 = 88.84 : x
  2. Step 2: Convert to fraction form
    118/162.86 = 88.84/x
  3. Step 3: Cross multiply
    118x = 162.86 × 88.84
  4. Step 4: Simplify right side
    118x = 14,468.48
  5. Step 5: Solve for x
    x = 14,468.48/118
  6. Step 6: Final answer
    x = 122.61

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