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Finding the Fourth Proportional to 206,521.76, 309,895.54 and 80,167.03

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Solution

The fourth proportional to 206,521.76, 309,895.54 and 80,167.03 is: 120,294.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,521.76 : 309,895.54 = 80,167.03 : x
  2. Step 2: Convert to fraction form
    206,521.76/309,895.54 = 80,167.03/x
  3. Step 3: Cross multiply
    206,521.76x = 309,895.54 × 80,167.03
  4. Step 4: Simplify right side
    206,521.76x = 24,843,404,076.89
  5. Step 5: Solve for x
    x = 24,843,404,076.89/206,521.76
  6. Step 6: Final answer
    x = 120,294.36

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