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Finding the Fourth Proportional to 458,195.20, 687,292.80 and 125,771.20

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Solution

The fourth proportional to 458,195.20, 687,292.80 and 125,771.20 is: 188,656.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,195.20 : 687,292.80 = 125,771.20 : x
  2. Step 2: Convert to fraction form
    458,195.20/687,292.80 = 125,771.20/x
  3. Step 3: Cross multiply
    458,195.20x = 687,292.80 × 125,771.20
  4. Step 4: Simplify right side
    458,195.20x = 86,441,640,207.36
  5. Step 5: Solve for x
    x = 86,441,640,207.36/458,195.20
  6. Step 6: Final answer
    x = 188,656.80

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