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Finding the Fourth Proportional to 120,703.49, 166,573.55 and 66,991.96

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Solution

The fourth proportional to 120,703.49, 166,573.55 and 66,991.96 is: 92,450.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,703.49 : 166,573.55 = 66,991.96 : x
  2. Step 2: Convert to fraction form
    120,703.49/166,573.55 = 66,991.96/x
  3. Step 3: Cross multiply
    120,703.49x = 166,573.55 × 66,991.96
  4. Step 4: Simplify right side
    120,703.49x = 11,159,088,471.92
  5. Step 5: Solve for x
    x = 11,159,088,471.92/120,703.49
  6. Step 6: Final answer
    x = 92,450.42

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