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Finding the Fourth Proportional to 168.92, 233.09 and 99

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Solution

The fourth proportional to 168.92, 233.09 and 99 is: 136.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.92 : 233.09 = 99 : x
  2. Step 2: Convert to fraction form
    168.92/233.09 = 99/x
  3. Step 3: Cross multiply
    168.92x = 233.09 × 99
  4. Step 4: Simplify right side
    168.92x = 23,075.42
  5. Step 5: Solve for x
    x = 23,075.42/168.92
  6. Step 6: Final answer
    x = 136.61

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