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Finding the Fourth Proportional to 134.78, 201.77 and 83.26

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Solution

The fourth proportional to 134.78, 201.77 and 83.26 is: 124.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.78 : 201.77 = 83.26 : x
  2. Step 2: Convert to fraction form
    134.78/201.77 = 83.26/x
  3. Step 3: Cross multiply
    134.78x = 201.77 × 83.26
  4. Step 4: Simplify right side
    134.78x = 16,799.37
  5. Step 5: Solve for x
    x = 16,799.37/134.78
  6. Step 6: Final answer
    x = 124.64

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