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Finding the Fourth Proportional to 139.44, 208 and 116.76

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Solution

The fourth proportional to 139.44, 208 and 116.76 is: 174.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    139.44 : 208 = 116.76 : x
  2. Step 2: Convert to fraction form
    139.44/208 = 116.76/x
  3. Step 3: Cross multiply
    139.44x = 208 × 116.76
  4. Step 4: Simplify right side
    139.44x = 24,286.08
  5. Step 5: Solve for x
    x = 24,286.08/139.44
  6. Step 6: Final answer
    x = 174.17

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