Home / 126,528.24-189,860.04-82,144.56

Finding the Fourth Proportional to 126,528.24, 189,860.04 and 82,144.56

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Solution

The fourth proportional to 126,528.24, 189,860.04 and 82,144.56 is: 123,260.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,528.24 : 189,860.04 = 82,144.56 : x
  2. Step 2: Convert to fraction form
    126,528.24/189,860.04 = 82,144.56/x
  3. Step 3: Cross multiply
    126,528.24x = 189,860.04 × 82,144.56
  4. Step 4: Simplify right side
    126,528.24x = 15,595,969,447.38
  5. Step 5: Solve for x
    x = 15,595,969,447.38/126,528.24
  6. Step 6: Final answer
    x = 123,260.78

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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.