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Finding the Fourth Proportional to 159,607.80, 220,249.26 and 87,990.84

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Solution

The fourth proportional to 159,607.80, 220,249.26 and 87,990.84 is: 121,422.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,607.80 : 220,249.26 = 87,990.84 : x
  2. Step 2: Convert to fraction form
    159,607.80/220,249.26 = 87,990.84/x
  3. Step 3: Cross multiply
    159,607.80x = 220,249.26 × 87,990.84
  4. Step 4: Simplify right side
    159,607.80x = 19,379,917,396.78
  5. Step 5: Solve for x
    x = 19,379,917,396.78/159,607.80
  6. Step 6: Final answer
    x = 121,422.12

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