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Finding the Fourth Proportional to 120,518.96, 166,315.88 and 66,071.04

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Solution

The fourth proportional to 120,518.96, 166,315.88 and 66,071.04 is: 91,177.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,518.96 : 166,315.88 = 66,071.04 : x
  2. Step 2: Convert to fraction form
    120,518.96/166,315.88 = 66,071.04/x
  3. Step 3: Cross multiply
    120,518.96x = 166,315.88 × 66,071.04
  4. Step 4: Simplify right side
    120,518.96x = 10,988,663,160.12
  5. Step 5: Solve for x
    x = 10,988,663,160.12/120,518.96
  6. Step 6: Final answer
    x = 91,177.88

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