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Finding the Fourth Proportional to 205,135.88, 283,080.02 and 128,696.09

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Solution

The fourth proportional to 205,135.88, 283,080.02 and 128,696.09 is: 177,595.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,135.88 : 283,080.02 = 128,696.09 : x
  2. Step 2: Convert to fraction form
    205,135.88/283,080.02 = 128,696.09/x
  3. Step 3: Cross multiply
    205,135.88x = 283,080.02 × 128,696.09
  4. Step 4: Simplify right side
    205,135.88x = 36,431,289,672.24
  5. Step 5: Solve for x
    x = 36,431,289,672.24/205,135.88
  6. Step 6: Final answer
    x = 177,595.90

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