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Finding the Fourth Proportional to 106.88, 147.48 and 68.12

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Solution

The fourth proportional to 106.88, 147.48 and 68.12 is: 94.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    106.88 : 147.48 = 68.12 : x
  2. Step 2: Convert to fraction form
    106.88/147.48 = 68.12/x
  3. Step 3: Cross multiply
    106.88x = 147.48 × 68.12
  4. Step 4: Simplify right side
    106.88x = 10,046.34
  5. Step 5: Solve for x
    x = 10,046.34/106.88
  6. Step 6: Final answer
    x = 94.00

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