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Finding the Fourth Proportional to 165,736.80, 248,605.20 and 91,087.20

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Solution

The fourth proportional to 165,736.80, 248,605.20 and 91,087.20 is: 136,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,736.80 : 248,605.20 = 91,087.20 : x
  2. Step 2: Convert to fraction form
    165,736.80/248,605.20 = 91,087.20/x
  3. Step 3: Cross multiply
    165,736.80x = 248,605.20 × 91,087.20
  4. Step 4: Simplify right side
    165,736.80x = 22,644,751,573.44
  5. Step 5: Solve for x
    x = 22,644,751,573.44/165,736.80
  6. Step 6: Final answer
    x = 136,630.80

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