Home / 263,044.11-394,344.72-105,186.45

Finding the Fourth Proportional to 263,044.11, 394,344.72 and 105,186.45

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Solution

The fourth proportional to 263,044.11, 394,344.72 and 105,186.45 is: 157,691.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,044.11 : 394,344.72 = 105,186.45 : x
  2. Step 2: Convert to fraction form
    263,044.11/394,344.72 = 105,186.45/x
  3. Step 3: Cross multiply
    263,044.11x = 394,344.72 × 105,186.45
  4. Step 4: Simplify right side
    263,044.11x = 41,479,721,173.04
  5. Step 5: Solve for x
    x = 41,479,721,173.04/263,044.11
  6. Step 6: Final answer
    x = 157,691.12

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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.