Home / 80,169.68-120,275.31-30,250.23

Finding the Fourth Proportional to 80,169.68, 120,275.31 and 30,250.23

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Solution

The fourth proportional to 80,169.68, 120,275.31 and 30,250.23 is: 45,383.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,169.68 : 120,275.31 = 30,250.23 : x
  2. Step 2: Convert to fraction form
    80,169.68/120,275.31 = 30,250.23/x
  3. Step 3: Cross multiply
    80,169.68x = 120,275.31 × 30,250.23
  4. Step 4: Simplify right side
    80,169.68x = 3,638,355,453.23
  5. Step 5: Solve for x
    x = 3,638,355,453.23/80,169.68
  6. Step 6: Final answer
    x = 45,383.18

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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.