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Finding the Fourth Proportional to 123,984.77, 170,940.59 and 80,300.15

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Solution

The fourth proportional to 123,984.77, 170,940.59 and 80,300.15 is: 110,711.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,984.77 : 170,940.59 = 80,300.15 : x
  2. Step 2: Convert to fraction form
    123,984.77/170,940.59 = 80,300.15/x
  3. Step 3: Cross multiply
    123,984.77x = 170,940.59 × 80,300.15
  4. Step 4: Simplify right side
    123,984.77x = 13,726,554,364.14
  5. Step 5: Solve for x
    x = 13,726,554,364.14/123,984.77
  6. Step 6: Final answer
    x = 110,711.61

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