Home / 187,819.05-259,191.09-101,778.22

Finding the Fourth Proportional to 187,819.05, 259,191.09 and 101,778.22

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Solution

The fourth proportional to 187,819.05, 259,191.09 and 101,778.22 is: 140,454.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,819.05 : 259,191.09 = 101,778.22 : x
  2. Step 2: Convert to fraction form
    187,819.05/259,191.09 = 101,778.22/x
  3. Step 3: Cross multiply
    187,819.05x = 259,191.09 × 101,778.22
  4. Step 4: Simplify right side
    187,819.05x = 26,380,008,104.05
  5. Step 5: Solve for x
    x = 26,380,008,104.05/187,819.05
  6. Step 6: Final answer
    x = 140,454.38

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1.5x scale

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.