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Finding the Fourth Proportional to 105.85, 158.82 and 65.26

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Solution

The fourth proportional to 105.85, 158.82 and 65.26 is: 97.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    105.85 : 158.82 = 65.26 : x
  2. Step 2: Convert to fraction form
    105.85/158.82 = 65.26/x
  3. Step 3: Cross multiply
    105.85x = 158.82 × 65.26
  4. Step 4: Simplify right side
    105.85x = 10,364.59
  5. Step 5: Solve for x
    x = 10,364.59/105.85
  6. Step 6: Final answer
    x = 97.92

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