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Finding the Fourth Proportional to 96.08, 143.86 and 77.72

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Solution

The fourth proportional to 96.08, 143.86 and 77.72 is: 116.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.08 : 143.86 = 77.72 : x
  2. Step 2: Convert to fraction form
    96.08/143.86 = 77.72/x
  3. Step 3: Cross multiply
    96.08x = 143.86 × 77.72
  4. Step 4: Simplify right side
    96.08x = 11,180.80
  5. Step 5: Solve for x
    x = 11,180.80/96.08
  6. Step 6: Final answer
    x = 116.37

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