Home / 86,161.20-129,242.01-26,190.22

Finding the Fourth Proportional to 86,161.20, 129,242.01 and 26,190.22

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Solution

The fourth proportional to 86,161.20, 129,242.01 and 26,190.22 is: 39,285.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,161.20 : 129,242.01 = 26,190.22 : x
  2. Step 2: Convert to fraction form
    86,161.20/129,242.01 = 26,190.22/x
  3. Step 3: Cross multiply
    86,161.20x = 129,242.01 × 26,190.22
  4. Step 4: Simplify right side
    86,161.20x = 3,384,876,675.14
  5. Step 5: Solve for x
    x = 3,384,876,675.14/86,161.20
  6. Step 6: Final answer
    x = 39,285.39

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1.5x scale

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.