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Finding the Fourth Proportional to 103,775.55, 143,167.77 and 76,616.61

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Solution

The fourth proportional to 103,775.55, 143,167.77 and 76,616.61 is: 105,699.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,775.55 : 143,167.77 = 76,616.61 : x
  2. Step 2: Convert to fraction form
    103,775.55/143,167.77 = 76,616.61/x
  3. Step 3: Cross multiply
    103,775.55x = 143,167.77 × 76,616.61
  4. Step 4: Simplify right side
    103,775.55x = 10,969,029,198.66
  5. Step 5: Solve for x
    x = 10,969,029,198.66/103,775.55
  6. Step 6: Final answer
    x = 105,699.55

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