Home / 191,129.76-263,736-113,592.96

Finding the Fourth Proportional to 191,129.76, 263,736 and 113,592.96

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Solution

The fourth proportional to 191,129.76, 263,736 and 113,592.96 is: 156,744.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,129.76 : 263,736 = 113,592.96 : x
  2. Step 2: Convert to fraction form
    191,129.76/263,736 = 113,592.96/x
  3. Step 3: Cross multiply
    191,129.76x = 263,736 × 113,592.96
  4. Step 4: Simplify right side
    191,129.76x = 29,958,552,898.56
  5. Step 5: Solve for x
    x = 29,958,552,898.56/191,129.76
  6. Step 6: Final answer
    x = 156,744.57

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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.