Home / 126,301.56-189,329.46-105,565.56

Finding the Fourth Proportional to 126,301.56, 189,329.46 and 105,565.56

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Solution

The fourth proportional to 126,301.56, 189,329.46 and 105,565.56 is: 158,245.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,301.56 : 189,329.46 = 105,565.56 : x
  2. Step 2: Convert to fraction form
    126,301.56/189,329.46 = 105,565.56/x
  3. Step 3: Cross multiply
    126,301.56x = 189,329.46 × 105,565.56
  4. Step 4: Simplify right side
    126,301.56x = 19,986,670,469.40
  5. Step 5: Solve for x
    x = 19,986,670,469.40/126,301.56
  6. Step 6: Final answer
    x = 158,245.63

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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.