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Finding the Fourth Proportional to 101,363.72, 139,720.90 and 79,819.29

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Solution

The fourth proportional to 101,363.72, 139,720.90 and 79,819.29 is: 110,023.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,363.72 : 139,720.90 = 79,819.29 : x
  2. Step 2: Convert to fraction form
    101,363.72/139,720.90 = 79,819.29/x
  3. Step 3: Cross multiply
    101,363.72x = 139,720.90 × 79,819.29
  4. Step 4: Simplify right side
    101,363.72x = 11,152,422,986.27
  5. Step 5: Solve for x
    x = 11,152,422,986.27/101,363.72
  6. Step 6: Final answer
    x = 110,023.81

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