Home / 193,323.45-289,839.27-126,780.33

Finding the Fourth Proportional to 193,323.45, 289,839.27 and 126,780.33

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Solution

The fourth proportional to 193,323.45, 289,839.27 and 126,780.33 is: 190,074.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,323.45 : 289,839.27 = 126,780.33 : x
  2. Step 2: Convert to fraction form
    193,323.45/289,839.27 = 126,780.33/x
  3. Step 3: Cross multiply
    193,323.45x = 289,839.27 × 126,780.33
  4. Step 4: Simplify right side
    193,323.45x = 36,745,918,297.56
  5. Step 5: Solve for x
    x = 36,745,918,297.56/193,323.45
  6. Step 6: Final answer
    x = 190,074.81

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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.