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Finding the Fourth Proportional to 103,766.95, 155,650.47 and 80,109.04

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Solution

The fourth proportional to 103,766.95, 155,650.47 and 80,109.04 is: 120,163.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,766.95 : 155,650.47 = 80,109.04 : x
  2. Step 2: Convert to fraction form
    103,766.95/155,650.47 = 80,109.04/x
  3. Step 3: Cross multiply
    103,766.95x = 155,650.47 × 80,109.04
  4. Step 4: Simplify right side
    103,766.95x = 12,469,009,237.99
  5. Step 5: Solve for x
    x = 12,469,009,237.99/103,766.95
  6. Step 6: Final answer
    x = 120,163.59

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