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Finding the Fourth Proportional to 131.56, 198.09 and 97.54

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Solution

The fourth proportional to 131.56, 198.09 and 97.54 is: 146.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131.56 : 198.09 = 97.54 : x
  2. Step 2: Convert to fraction form
    131.56/198.09 = 97.54/x
  3. Step 3: Cross multiply
    131.56x = 198.09 × 97.54
  4. Step 4: Simplify right side
    131.56x = 19,321.70
  5. Step 5: Solve for x
    x = 19,321.70/131.56
  6. Step 6: Final answer
    x = 146.87

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