Home / 261,121.42-391,040.97-127,571.14

Finding the Fourth Proportional to 261,121.42, 391,040.97 and 127,571.14

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Solution

The fourth proportional to 261,121.42, 391,040.97 and 127,571.14 is: 191,043.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,121.42 : 391,040.97 = 127,571.14 : x
  2. Step 2: Convert to fraction form
    261,121.42/391,040.97 = 127,571.14/x
  3. Step 3: Cross multiply
    261,121.42x = 391,040.97 × 127,571.14
  4. Step 4: Simplify right side
    261,121.42x = 49,885,542,329.61
  5. Step 5: Solve for x
    x = 49,885,542,329.61/261,121.42
  6. Step 6: Final answer
    x = 191,043.47

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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.