Home / 281,629.94-422,441.24-68,399.60

Finding the Fourth Proportional to 281,629.94, 422,441.24 and 68,399.60

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Solution

The fourth proportional to 281,629.94, 422,441.24 and 68,399.60 is: 102,598.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,629.94 : 422,441.24 = 68,399.60 : x
  2. Step 2: Convert to fraction form
    281,629.94/422,441.24 = 68,399.60/x
  3. Step 3: Cross multiply
    281,629.94x = 422,441.24 × 68,399.60
  4. Step 4: Simplify right side
    281,629.94x = 28,894,811,839.50
  5. Step 5: Solve for x
    x = 28,894,811,839.50/281,629.94
  6. Step 6: Final answer
    x = 102,598.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.