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Finding the Fourth Proportional to 120,998.74, 181,379.64 and 67,716.74

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Solution

The fourth proportional to 120,998.74, 181,379.64 and 67,716.74 is: 101,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,998.74 : 181,379.64 = 67,716.74 : x
  2. Step 2: Convert to fraction form
    120,998.74/181,379.64 = 67,716.74/x
  3. Step 3: Cross multiply
    120,998.74x = 181,379.64 × 67,716.74
  4. Step 4: Simplify right side
    120,998.74x = 12,282,437,469.72
  5. Step 5: Solve for x
    x = 12,282,437,469.72/120,998.74
  6. Step 6: Final answer
    x = 101,508.80

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