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Finding the Fourth Proportional to 105.54, 158 and 99.24

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Solution

The fourth proportional to 105.54, 158 and 99.24 is: 148.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105.54 : 158 = 99.24 : x
  2. Step 2: Convert to fraction form
    105.54/158 = 99.24/x
  3. Step 3: Cross multiply
    105.54x = 158 × 99.24
  4. Step 4: Simplify right side
    105.54x = 15,679.92
  5. Step 5: Solve for x
    x = 15,679.92/105.54
  6. Step 6: Final answer
    x = 148.57

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