Home / 126,619.20-189,786.24-97,161.12

Finding the Fourth Proportional to 126,619.20, 189,786.24 and 97,161.12

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Solution

The fourth proportional to 126,619.20, 189,786.24 and 97,161.12 is: 145,632.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,619.20 : 189,786.24 = 97,161.12 : x
  2. Step 2: Convert to fraction form
    126,619.20/189,786.24 = 97,161.12/x
  3. Step 3: Cross multiply
    126,619.20x = 189,786.24 × 97,161.12
  4. Step 4: Simplify right side
    126,619.20x = 18,439,843,638.99
  5. Step 5: Solve for x
    x = 18,439,843,638.99/126,619.20
  6. Step 6: Final answer
    x = 145,632.29

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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.