Home / 191,161.15-263,808.96-105,123.37

Finding the Fourth Proportional to 191,161.15, 263,808.96 and 105,123.37

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Solution

The fourth proportional to 191,161.15, 263,808.96 and 105,123.37 is: 145,073.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,161.15 : 263,808.96 = 105,123.37 : x
  2. Step 2: Convert to fraction form
    191,161.15/263,808.96 = 105,123.37/x
  3. Step 3: Cross multiply
    191,161.15x = 263,808.96 × 105,123.37
  4. Step 4: Simplify right side
    191,161.15x = 27,732,486,943.62
  5. Step 5: Solve for x
    x = 27,732,486,943.62/191,161.15
  6. Step 6: Final answer
    x = 145,073.87

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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.