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Finding the Fourth Proportional to 123.31, 184.80 and 65.56

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Solution

The fourth proportional to 123.31, 184.80 and 65.56 is: 98.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123.31 : 184.80 = 65.56 : x
  2. Step 2: Convert to fraction form
    123.31/184.80 = 65.56/x
  3. Step 3: Cross multiply
    123.31x = 184.80 × 65.56
  4. Step 4: Simplify right side
    123.31x = 12,115.27
  5. Step 5: Solve for x
    x = 12,115.27/123.31
  6. Step 6: Final answer
    x = 98.25

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