Home / 192,372.69-288,612.27-80,105.70

Finding the Fourth Proportional to 192,372.69, 288,612.27 and 80,105.70

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Solution

The fourth proportional to 192,372.69, 288,612.27 and 80,105.70 is: 120,180.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,372.69 : 288,612.27 = 80,105.70 : x
  2. Step 2: Convert to fraction form
    192,372.69/288,612.27 = 80,105.70/x
  3. Step 3: Cross multiply
    192,372.69x = 288,612.27 × 80,105.70
  4. Step 4: Simplify right side
    192,372.69x = 23,119,487,916.94
  5. Step 5: Solve for x
    x = 23,119,487,916.94/192,372.69
  6. Step 6: Final answer
    x = 120,180.72

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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.