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Finding the Fourth Proportional to 107,789.54, 161,753.49 and 72,290.93

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Solution

The fourth proportional to 107,789.54, 161,753.49 and 72,290.93 is: 108,482.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,789.54 : 161,753.49 = 72,290.93 : x
  2. Step 2: Convert to fraction form
    107,789.54/161,753.49 = 72,290.93/x
  3. Step 3: Cross multiply
    107,789.54x = 161,753.49 × 72,290.93
  4. Step 4: Simplify right side
    107,789.54x = 11,693,310,627.23
  5. Step 5: Solve for x
    x = 11,693,310,627.23/107,789.54
  6. Step 6: Final answer
    x = 108,482.79

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