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Finding the Fourth Proportional to 124.11, 185.76 and 109.76

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Solution

The fourth proportional to 124.11, 185.76 and 109.76 is: 164.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.11 : 185.76 = 109.76 : x
  2. Step 2: Convert to fraction form
    124.11/185.76 = 109.76/x
  3. Step 3: Cross multiply
    124.11x = 185.76 × 109.76
  4. Step 4: Simplify right side
    124.11x = 20,388.09
  5. Step 5: Solve for x
    x = 20,388.09/124.11
  6. Step 6: Final answer
    x = 164.27

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