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Finding the Fourth Proportional to 120,347.10, 166,085.10 and 66,638.04

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Solution

The fourth proportional to 120,347.10, 166,085.10 and 66,638.04 is: 91,963.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,347.10 : 166,085.10 = 66,638.04 : x
  2. Step 2: Convert to fraction form
    120,347.10/166,085.10 = 66,638.04/x
  3. Step 3: Cross multiply
    120,347.10x = 166,085.10 × 66,638.04
  4. Step 4: Simplify right side
    120,347.10x = 11,067,585,537.20
  5. Step 5: Solve for x
    x = 11,067,585,537.20/120,347.10
  6. Step 6: Final answer
    x = 91,963.87

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