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Finding the Fourth Proportional to 206,264.72, 309,418.68 and 87,948.56

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Solution

The fourth proportional to 206,264.72, 309,418.68 and 87,948.56 is: 131,932.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,264.72 : 309,418.68 = 87,948.56 : x
  2. Step 2: Convert to fraction form
    206,264.72/309,418.68 = 87,948.56/x
  3. Step 3: Cross multiply
    206,264.72x = 309,418.68 × 87,948.56
  4. Step 4: Simplify right side
    206,264.72x = 27,212,927,343.10
  5. Step 5: Solve for x
    x = 27,212,927,343.10/206,264.72
  6. Step 6: Final answer
    x = 131,932.05

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