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Finding the Fourth Proportional to 213,067.15, 319,517.69 and 79,874.75

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Solution

The fourth proportional to 213,067.15, 319,517.69 and 79,874.75 is: 119,781.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,067.15 : 319,517.69 = 79,874.75 : x
  2. Step 2: Convert to fraction form
    213,067.15/319,517.69 = 79,874.75/x
  3. Step 3: Cross multiply
    213,067.15x = 319,517.69 × 79,874.75
  4. Step 4: Simplify right side
    213,067.15x = 25,521,395,609.33
  5. Step 5: Solve for x
    x = 25,521,395,609.33/213,067.15
  6. Step 6: Final answer
    x = 119,781.00

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