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Finding the Fourth Proportional to 236,090.43, 325,804.82 and 128,660.40

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Solution

The fourth proportional to 236,090.43, 325,804.82 and 128,660.40 is: 177,551.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,090.43 : 325,804.82 = 128,660.40 : x
  2. Step 2: Convert to fraction form
    236,090.43/325,804.82 = 128,660.40/x
  3. Step 3: Cross multiply
    236,090.43x = 325,804.82 × 128,660.40
  4. Step 4: Simplify right side
    236,090.43x = 41,918,177,819.83
  5. Step 5: Solve for x
    x = 41,918,177,819.83/236,090.43
  6. Step 6: Final answer
    x = 177,551.36

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