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Finding the Fourth Proportional to 106.74, 160.13 and 55.25

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Solution

The fourth proportional to 106.74, 160.13 and 55.25 is: 82.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    106.74 : 160.13 = 55.25 : x
  2. Step 2: Convert to fraction form
    106.74/160.13 = 55.25/x
  3. Step 3: Cross multiply
    106.74x = 160.13 × 55.25
  4. Step 4: Simplify right side
    106.74x = 8,846.11
  5. Step 5: Solve for x
    x = 8,846.11/106.74
  6. Step 6: Final answer
    x = 82.88

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