Home / 205,571.53-283,584.81-137,591.35

Finding the Fourth Proportional to 205,571.53, 283,584.81 and 137,591.35

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Solution

The fourth proportional to 205,571.53, 283,584.81 and 137,591.35 is: 189,806.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,571.53 : 283,584.81 = 137,591.35 : x
  2. Step 2: Convert to fraction form
    205,571.53/283,584.81 = 137,591.35/x
  3. Step 3: Cross multiply
    205,571.53x = 283,584.81 × 137,591.35
  4. Step 4: Simplify right side
    205,571.53x = 39,018,816,847.39
  5. Step 5: Solve for x
    x = 39,018,816,847.39/205,571.53
  6. Step 6: Final answer
    x = 189,806.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.