Home / 192,786.90-266,049.20-105,579.65

Finding the Fourth Proportional to 192,786.90, 266,049.20 and 105,579.65

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Solution

The fourth proportional to 192,786.90, 266,049.20 and 105,579.65 is: 145,701.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,786.90 : 266,049.20 = 105,579.65 : x
  2. Step 2: Convert to fraction form
    192,786.90/266,049.20 = 105,579.65/x
  3. Step 3: Cross multiply
    192,786.90x = 266,049.20 × 105,579.65
  4. Step 4: Simplify right side
    192,786.90x = 28,089,380,352.48
  5. Step 5: Solve for x
    x = 28,089,380,352.48/192,786.90
  6. Step 6: Final answer
    x = 145,701.71

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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.