Home / 126,022.20-188,814.60-81,626.10

Finding the Fourth Proportional to 126,022.20, 188,814.60 and 81,626.10

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Solution

The fourth proportional to 126,022.20, 188,814.60 and 81,626.10 is: 122,297.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,022.20 : 188,814.60 = 81,626.10 : x
  2. Step 2: Convert to fraction form
    126,022.20/188,814.60 = 81,626.10/x
  3. Step 3: Cross multiply
    126,022.20x = 188,814.60 × 81,626.10
  4. Step 4: Simplify right side
    126,022.20x = 15,412,199,421.06
  5. Step 5: Solve for x
    x = 15,412,199,421.06/126,022.20
  6. Step 6: Final answer
    x = 122,297.50

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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.