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Finding the Fourth Proportional to 206,752.86, 285,240.15 and 121,838.94

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Solution

The fourth proportional to 206,752.86, 285,240.15 and 121,838.94 is: 168,091.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,752.86 : 285,240.15 = 121,838.94 : x
  2. Step 2: Convert to fraction form
    206,752.86/285,240.15 = 121,838.94/x
  3. Step 3: Cross multiply
    206,752.86x = 285,240.15 × 121,838.94
  4. Step 4: Simplify right side
    206,752.86x = 34,753,357,521.44
  5. Step 5: Solve for x
    x = 34,753,357,521.44/206,752.86
  6. Step 6: Final answer
    x = 168,091.30

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