Home / 10,106.43-15,161.99-3,180.75

Finding the Fourth Proportional to 10,106.43, 15,161.99 and 3,180.75

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Solution

The fourth proportional to 10,106.43, 15,161.99 and 3,180.75 is: 4,771.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,106.43 : 15,161.99 = 3,180.75 : x
  2. Step 2: Convert to fraction form
    10,106.43/15,161.99 = 3,180.75/x
  3. Step 3: Cross multiply
    10,106.43x = 15,161.99 × 3,180.75
  4. Step 4: Simplify right side
    10,106.43x = 48,226,499.69
  5. Step 5: Solve for x
    x = 48,226,499.69/10,106.43
  6. Step 6: Final answer
    x = 4,771.86

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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.