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Finding the Fourth Proportional to 123,394.56, 170,328.96 and 80,962.56

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Solution

The fourth proportional to 123,394.56, 170,328.96 and 80,962.56 is: 111,757.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,394.56 : 170,328.96 = 80,962.56 : x
  2. Step 2: Convert to fraction form
    123,394.56/170,328.96 = 80,962.56/x
  3. Step 3: Cross multiply
    123,394.56x = 170,328.96 × 80,962.56
  4. Step 4: Simplify right side
    123,394.56x = 13,790,268,643.74
  5. Step 5: Solve for x
    x = 13,790,268,643.74/123,394.56
  6. Step 6: Final answer
    x = 111,757.51

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