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Finding the Fourth Proportional to 199,307.69, 298,862.97 and 86,939.33

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Solution

The fourth proportional to 199,307.69, 298,862.97 and 86,939.33 is: 130,365.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,307.69 : 298,862.97 = 86,939.33 : x
  2. Step 2: Convert to fraction form
    199,307.69/298,862.97 = 86,939.33/x
  3. Step 3: Cross multiply
    199,307.69x = 298,862.97 × 86,939.33
  4. Step 4: Simplify right side
    199,307.69x = 25,982,944,553.27
  5. Step 5: Solve for x
    x = 25,982,944,553.27/199,307.69
  6. Step 6: Final answer
    x = 130,365.99

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