Home / 192,867.95-289,348.12-80,485.65

Finding the Fourth Proportional to 192,867.95, 289,348.12 and 80,485.65

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Solution

The fourth proportional to 192,867.95, 289,348.12 and 80,485.65 is: 120,747.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,867.95 : 289,348.12 = 80,485.65 : x
  2. Step 2: Convert to fraction form
    192,867.95/289,348.12 = 80,485.65/x
  3. Step 3: Cross multiply
    192,867.95x = 289,348.12 × 80,485.65
  4. Step 4: Simplify right side
    192,867.95x = 23,288,371,514.48
  5. Step 5: Solve for x
    x = 23,288,371,514.48/192,867.95
  6. Step 6: Final answer
    x = 120,747.75

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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.