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Finding the Fourth Proportional to 159,616.99, 220,272.92 and 87,999.58

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Solution

The fourth proportional to 159,616.99, 220,272.92 and 87,999.58 is: 121,440.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,616.99 : 220,272.92 = 87,999.58 : x
  2. Step 2: Convert to fraction form
    159,616.99/220,272.92 = 87,999.58/x
  3. Step 3: Cross multiply
    159,616.99x = 220,272.92 × 87,999.58
  4. Step 4: Simplify right side
    159,616.99x = 19,383,924,445.37
  5. Step 5: Solve for x
    x = 19,383,924,445.37/159,616.99
  6. Step 6: Final answer
    x = 121,440.23

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