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Finding the Fourth Proportional to 120,908.48, 166,849.68 and 67,191.44

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Solution

The fourth proportional to 120,908.48, 166,849.68 and 67,191.44 is: 92,721.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,908.48 : 166,849.68 = 67,191.44 : x
  2. Step 2: Convert to fraction form
    120,908.48/166,849.68 = 67,191.44/x
  3. Step 3: Cross multiply
    120,908.48x = 166,849.68 × 67,191.44
  4. Step 4: Simplify right side
    120,908.48x = 11,210,870,262.74
  5. Step 5: Solve for x
    x = 11,210,870,262.74/120,908.48
  6. Step 6: Final answer
    x = 92,721.95

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