Home / 100,443.03-150,660.23-30,320.25

Finding the Fourth Proportional to 100,443.03, 150,660.23 and 30,320.25

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Solution

The fourth proportional to 100,443.03, 150,660.23 and 30,320.25 is: 45,479.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,443.03 : 150,660.23 = 30,320.25 : x
  2. Step 2: Convert to fraction form
    100,443.03/150,660.23 = 30,320.25/x
  3. Step 3: Cross multiply
    100,443.03x = 150,660.23 × 30,320.25
  4. Step 4: Simplify right side
    100,443.03x = 4,568,055,687.06
  5. Step 5: Solve for x
    x = 4,568,055,687.06/100,443.03
  6. Step 6: Final answer
    x = 45,479.07

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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.