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Finding the Fourth Proportional to 104.92, 144.70 and 68.05

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Solution

The fourth proportional to 104.92, 144.70 and 68.05 is: 93.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    104.92 : 144.70 = 68.05 : x
  2. Step 2: Convert to fraction form
    104.92/144.70 = 68.05/x
  3. Step 3: Cross multiply
    104.92x = 144.70 × 68.05
  4. Step 4: Simplify right side
    104.92x = 9,846.84
  5. Step 5: Solve for x
    x = 9,846.84/104.92
  6. Step 6: Final answer
    x = 93.85

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