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Finding the Fourth Proportional to 216,921.48, 325,351.44 and 83,864.40

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Solution

The fourth proportional to 216,921.48, 325,351.44 and 83,864.40 is: 125,784.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,921.48 : 325,351.44 = 83,864.40 : x
  2. Step 2: Convert to fraction form
    216,921.48/325,351.44 = 83,864.40/x
  3. Step 3: Cross multiply
    216,921.48x = 325,351.44 × 83,864.40
  4. Step 4: Simplify right side
    216,921.48x = 27,285,403,304.74
  5. Step 5: Solve for x
    x = 27,285,403,304.74/216,921.48
  6. Step 6: Final answer
    x = 125,784.70

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