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Finding the Fourth Proportional to 135.91, 203.87 and 63.69

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Solution

The fourth proportional to 135.91, 203.87 and 63.69 is: 95.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    135.91 : 203.87 = 63.69 : x
  2. Step 2: Convert to fraction form
    135.91/203.87 = 63.69/x
  3. Step 3: Cross multiply
    135.91x = 203.87 × 63.69
  4. Step 4: Simplify right side
    135.91x = 12,984.48
  5. Step 5: Solve for x
    x = 12,984.48/135.91
  6. Step 6: Final answer
    x = 95.54

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