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Finding the Fourth Proportional to 219,981.38, 330,007.80 and 68,142.99

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Solution

The fourth proportional to 219,981.38, 330,007.80 and 68,142.99 is: 102,225.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,981.38 : 330,007.80 = 68,142.99 : x
  2. Step 2: Convert to fraction form
    219,981.38/330,007.80 = 68,142.99/x
  3. Step 3: Cross multiply
    219,981.38x = 330,007.80 × 68,142.99
  4. Step 4: Simplify right side
    219,981.38x = 22,487,718,215.32
  5. Step 5: Solve for x
    x = 22,487,718,215.32/219,981.38
  6. Step 6: Final answer
    x = 102,225.56

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