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Finding the Fourth Proportional to 143,282.84, 197,732.11 and 78,759.12

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Solution

The fourth proportional to 143,282.84, 197,732.11 and 78,759.12 is: 108,688.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,282.84 : 197,732.11 = 78,759.12 : x
  2. Step 2: Convert to fraction form
    143,282.84/197,732.11 = 78,759.12/x
  3. Step 3: Cross multiply
    143,282.84x = 197,732.11 × 78,759.12
  4. Step 4: Simplify right side
    143,282.84x = 15,573,206,782.45
  5. Step 5: Solve for x
    x = 15,573,206,782.45/143,282.84
  6. Step 6: Final answer
    x = 108,688.57

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