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Finding the Fourth Proportional to 159,249.78, 219,759.21 and 87,623.10

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Solution

The fourth proportional to 159,249.78, 219,759.21 and 87,623.10 is: 120,916.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,249.78 : 219,759.21 = 87,623.10 : x
  2. Step 2: Convert to fraction form
    159,249.78/219,759.21 = 87,623.10/x
  3. Step 3: Cross multiply
    159,249.78x = 219,759.21 × 87,623.10
  4. Step 4: Simplify right side
    159,249.78x = 19,255,983,233.75
  5. Step 5: Solve for x
    x = 19,255,983,233.75/159,249.78
  6. Step 6: Final answer
    x = 120,916.86

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