Home / 263,136.96-394,727.04-85,597.92

Finding the Fourth Proportional to 263,136.96, 394,727.04 and 85,597.92

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Solution

The fourth proportional to 263,136.96, 394,727.04 and 85,597.92 is: 128,403.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,136.96 : 394,727.04 = 85,597.92 : x
  2. Step 2: Convert to fraction form
    263,136.96/394,727.04 = 85,597.92/x
  3. Step 3: Cross multiply
    263,136.96x = 394,727.04 × 85,597.92
  4. Step 4: Simplify right side
    263,136.96x = 33,787,813,591.76
  5. Step 5: Solve for x
    x = 33,787,813,591.76/263,136.96
  6. Step 6: Final answer
    x = 128,403.91

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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.