Home / 263,161.41-394,807.87-76,172.91

Finding the Fourth Proportional to 263,161.41, 394,807.87 and 76,172.91

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Solution

The fourth proportional to 263,161.41, 394,807.87 and 76,172.91 is: 114,278.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,161.41 : 394,807.87 = 76,172.91 : x
  2. Step 2: Convert to fraction form
    263,161.41/394,807.87 = 76,172.91/x
  3. Step 3: Cross multiply
    263,161.41x = 394,807.87 × 76,172.91
  4. Step 4: Simplify right side
    263,161.41x = 30,073,662,963.49
  5. Step 5: Solve for x
    x = 30,073,662,963.49/263,161.41
  6. Step 6: Final answer
    x = 114,278.39

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1.5x scale

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.