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Finding the Fourth Proportional to 113,889.36, 170,834.65 and 74,694.68

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Solution

The fourth proportional to 113,889.36, 170,834.65 and 74,694.68 is: 112,042.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,889.36 : 170,834.65 = 74,694.68 : x
  2. Step 2: Convert to fraction form
    113,889.36/170,834.65 = 74,694.68/x
  3. Step 3: Cross multiply
    113,889.36x = 170,834.65 × 74,694.68
  4. Step 4: Simplify right side
    113,889.36x = 12,760,438,660.49
  5. Step 5: Solve for x
    x = 12,760,438,660.49/113,889.36
  6. Step 6: Final answer
    x = 112,042.41

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