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Finding the Fourth Proportional to 425,625.97, 638,532.36 and 126,129.99

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Solution

The fourth proportional to 425,625.97, 638,532.36 and 126,129.99 is: 189,222.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,625.97 : 638,532.36 = 126,129.99 : x
  2. Step 2: Convert to fraction form
    425,625.97/638,532.36 = 126,129.99/x
  3. Step 3: Cross multiply
    425,625.97x = 638,532.36 × 126,129.99
  4. Step 4: Simplify right side
    425,625.97x = 80,538,080,181.48
  5. Step 5: Solve for x
    x = 80,538,080,181.48/425,625.97
  6. Step 6: Final answer
    x = 189,222.66

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