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Finding the Fourth Proportional to 458,164.20, 687,246.30 and 125,740.20

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Solution

The fourth proportional to 458,164.20, 687,246.30 and 125,740.20 is: 188,610.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,164.20 : 687,246.30 = 125,740.20 : x
  2. Step 2: Convert to fraction form
    458,164.20/687,246.30 = 125,740.20/x
  3. Step 3: Cross multiply
    458,164.20x = 687,246.30 × 125,740.20
  4. Step 4: Simplify right side
    458,164.20x = 86,414,487,211.26
  5. Step 5: Solve for x
    x = 86,414,487,211.26/458,164.20
  6. Step 6: Final answer
    x = 188,610.30

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