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Finding the Fourth Proportional to 123.99, 185.82 and 75.24

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Solution

The fourth proportional to 123.99, 185.82 and 75.24 is: 112.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123.99 : 185.82 = 75.24 : x
  2. Step 2: Convert to fraction form
    123.99/185.82 = 75.24/x
  3. Step 3: Cross multiply
    123.99x = 185.82 × 75.24
  4. Step 4: Simplify right side
    123.99x = 13,981.10
  5. Step 5: Solve for x
    x = 13,981.10/123.99
  6. Step 6: Final answer
    x = 112.76

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