Home / 140,218.92-209,993.18-80,874.68

Finding the Fourth Proportional to 140,218.92, 209,993.18 and 80,874.68

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Solution

The fourth proportional to 140,218.92, 209,993.18 and 80,874.68 is: 121,118.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,218.92 : 209,993.18 = 80,874.68 : x
  2. Step 2: Convert to fraction form
    140,218.92/209,993.18 = 80,874.68/x
  3. Step 3: Cross multiply
    140,218.92x = 209,993.18 × 80,874.68
  4. Step 4: Simplify right side
    140,218.92x = 16,983,129,780.34
  5. Step 5: Solve for x
    x = 16,983,129,780.34/140,218.92
  6. Step 6: Final answer
    x = 121,118.67

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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.