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Finding the Fourth Proportional to 111,813.40, 167,728.20 and 67,344.40

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Solution

The fourth proportional to 111,813.40, 167,728.20 and 67,344.40 is: 101,021.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,813.40 : 167,728.20 = 67,344.40 : x
  2. Step 2: Convert to fraction form
    111,813.40/167,728.20 = 67,344.40/x
  3. Step 3: Cross multiply
    111,813.40x = 167,728.20 × 67,344.40
  4. Step 4: Simplify right side
    111,813.40x = 11,295,554,992.08
  5. Step 5: Solve for x
    x = 11,295,554,992.08/111,813.40
  6. Step 6: Final answer
    x = 101,021.48

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