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Finding the Fourth Proportional to 122.82, 184.24 and 61.92

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Solution

The fourth proportional to 122.82, 184.24 and 61.92 is: 92.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    122.82 : 184.24 = 61.92 : x
  2. Step 2: Convert to fraction form
    122.82/184.24 = 61.92/x
  3. Step 3: Cross multiply
    122.82x = 184.24 × 61.92
  4. Step 4: Simplify right side
    122.82x = 11,408.14
  5. Step 5: Solve for x
    x = 11,408.14/122.82
  6. Step 6: Final answer
    x = 92.89

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