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Finding the Fourth Proportional to 268,749.12, 403,372.92 and 135,723

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Solution

The fourth proportional to 268,749.12, 403,372.92 and 135,723 is: 203,710.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,749.12 : 403,372.92 = 135,723 : x
  2. Step 2: Convert to fraction form
    268,749.12/403,372.92 = 135,723/x
  3. Step 3: Cross multiply
    268,749.12x = 403,372.92 × 135,723
  4. Step 4: Simplify right side
    268,749.12x = 54,746,982,821.16
  5. Step 5: Solve for x
    x = 54,746,982,821.16/268,749.12
  6. Step 6: Final answer
    x = 203,710.37

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