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Finding the Fourth Proportional to 231,930.03, 320,058.03 and 136,442.88

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Solution

The fourth proportional to 231,930.03, 320,058.03 and 136,442.88 is: 188,287.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,930.03 : 320,058.03 = 136,442.88 : x
  2. Step 2: Convert to fraction form
    231,930.03/320,058.03 = 136,442.88/x
  3. Step 3: Cross multiply
    231,930.03x = 320,058.03 × 136,442.88
  4. Step 4: Simplify right side
    231,930.03x = 43,669,639,891.99
  5. Step 5: Solve for x
    x = 43,669,639,891.99/231,930.03
  6. Step 6: Final answer
    x = 188,287.99

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