Home / 100,378.92-150,568.26-30,258.23

Finding the Fourth Proportional to 100,378.92, 150,568.26 and 30,258.23

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Solution

The fourth proportional to 100,378.92, 150,568.26 and 30,258.23 is: 45,387.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,378.92 : 150,568.26 = 30,258.23 : x
  2. Step 2: Convert to fraction form
    100,378.92/150,568.26 = 30,258.23/x
  3. Step 3: Cross multiply
    100,378.92x = 150,568.26 × 30,258.23
  4. Step 4: Simplify right side
    100,378.92x = 4,555,928,288.94
  5. Step 5: Solve for x
    x = 4,555,928,288.94/100,378.92
  6. Step 6: Final answer
    x = 45,387.30

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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.