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Finding the Fourth Proportional to 68.94, 103.29 and 67.92

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Solution

The fourth proportional to 68.94, 103.29 and 67.92 is: 101.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68.94 : 103.29 = 67.92 : x
  2. Step 2: Convert to fraction form
    68.94/103.29 = 67.92/x
  3. Step 3: Cross multiply
    68.94x = 103.29 × 67.92
  4. Step 4: Simplify right side
    68.94x = 7,015.46
  5. Step 5: Solve for x
    x = 7,015.46/68.94
  6. Step 6: Final answer
    x = 101.76

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