Home / 139,234.68-192,144.23-75,572.48

Finding the Fourth Proportional to 139,234.68, 192,144.23 and 75,572.48

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Solution

The fourth proportional to 139,234.68, 192,144.23 and 75,572.48 is: 104,290.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,234.68 : 192,144.23 = 75,572.48 : x
  2. Step 2: Convert to fraction form
    139,234.68/192,144.23 = 75,572.48/x
  3. Step 3: Cross multiply
    139,234.68x = 192,144.23 × 75,572.48
  4. Step 4: Simplify right side
    139,234.68x = 14,520,814,640.21
  5. Step 5: Solve for x
    x = 14,520,814,640.21/139,234.68
  6. Step 6: Final answer
    x = 104,290.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.