Home / 191,170.28-263,819.31-105,123.85

Finding the Fourth Proportional to 191,170.28, 263,819.31 and 105,123.85

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Solution

The fourth proportional to 191,170.28, 263,819.31 and 105,123.85 is: 145,073.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,170.28 : 263,819.31 = 105,123.85 : x
  2. Step 2: Convert to fraction form
    191,170.28/263,819.31 = 105,123.85/x
  3. Step 3: Cross multiply
    191,170.28x = 263,819.31 × 105,123.85
  4. Step 4: Simplify right side
    191,170.28x = 27,733,701,571.54
  5. Step 5: Solve for x
    x = 27,733,701,571.54/191,170.28
  6. Step 6: Final answer
    x = 145,073.29

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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.