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Finding the Fourth Proportional to 124.23, 186.99 and 111

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Solution

The fourth proportional to 124.23, 186.99 and 111 is: 167.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.23 : 186.99 = 111 : x
  2. Step 2: Convert to fraction form
    124.23/186.99 = 111/x
  3. Step 3: Cross multiply
    124.23x = 186.99 × 111
  4. Step 4: Simplify right side
    124.23x = 20,755.89
  5. Step 5: Solve for x
    x = 20,755.89/124.23
  6. Step 6: Final answer
    x = 167.08

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