Home / 192,922.48-289,429.20-80,540.20

Finding the Fourth Proportional to 192,922.48, 289,429.20 and 80,540.20

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Solution

The fourth proportional to 192,922.48, 289,429.20 and 80,540.20 is: 120,829.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,922.48 : 289,429.20 = 80,540.20 : x
  2. Step 2: Convert to fraction form
    192,922.48/289,429.20 = 80,540.20/x
  3. Step 3: Cross multiply
    192,922.48x = 289,429.20 × 80,540.20
  4. Step 4: Simplify right side
    192,922.48x = 23,310,685,653.84
  5. Step 5: Solve for x
    x = 23,310,685,653.84/192,922.48
  6. Step 6: Final answer
    x = 120,829.29

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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.