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Finding the Fourth Proportional to 123,308.73, 170,156.25 and 75,555.54

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Solution

The fourth proportional to 123,308.73, 170,156.25 and 75,555.54 is: 104,260.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,308.73 : 170,156.25 = 75,555.54 : x
  2. Step 2: Convert to fraction form
    123,308.73/170,156.25 = 75,555.54/x
  3. Step 3: Cross multiply
    123,308.73x = 170,156.25 × 75,555.54
  4. Step 4: Simplify right side
    123,308.73x = 12,856,247,353.13
  5. Step 5: Solve for x
    x = 12,856,247,353.13/123,308.73
  6. Step 6: Final answer
    x = 104,260.64

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