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Finding the Fourth Proportional to 361,762.20, 542,721.26 and 121,900.14

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Solution

The fourth proportional to 361,762.20, 542,721.26 and 121,900.14 is: 182,876.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,762.20 : 542,721.26 = 121,900.14 : x
  2. Step 2: Convert to fraction form
    361,762.20/542,721.26 = 121,900.14/x
  3. Step 3: Cross multiply
    361,762.20x = 542,721.26 × 121,900.14
  4. Step 4: Simplify right side
    361,762.20x = 66,157,797,879.73
  5. Step 5: Solve for x
    x = 66,157,797,879.73/361,762.20
  6. Step 6: Final answer
    x = 182,876.48

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