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Finding the Fourth Proportional to 193,389.76, 266,889.63 and 128,747.44

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Solution

The fourth proportional to 193,389.76, 266,889.63 and 128,747.44 is: 177,679.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,389.76 : 266,889.63 = 128,747.44 : x
  2. Step 2: Convert to fraction form
    193,389.76/266,889.63 = 128,747.44/x
  3. Step 3: Cross multiply
    193,389.76x = 266,889.63 × 128,747.44
  4. Step 4: Simplify right side
    193,389.76x = 34,361,356,625.05
  5. Step 5: Solve for x
    x = 34,361,356,625.05/193,389.76
  6. Step 6: Final answer
    x = 177,679.30

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