Home / 185,327.80-278,121.30-80,222.20

Finding the Fourth Proportional to 185,327.80, 278,121.30 and 80,222.20

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Solution

The fourth proportional to 185,327.80, 278,121.30 and 80,222.20 is: 120,389.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,327.80 : 278,121.30 = 80,222.20 : x
  2. Step 2: Convert to fraction form
    185,327.80/278,121.30 = 80,222.20/x
  3. Step 3: Cross multiply
    185,327.80x = 278,121.30 × 80,222.20
  4. Step 4: Simplify right side
    185,327.80x = 22,311,502,552.86
  5. Step 5: Solve for x
    x = 22,311,502,552.86/185,327.80
  6. Step 6: Final answer
    x = 120,389.40

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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.