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Finding the Fourth Proportional to 139,468.92, 192,467.37 and 75,806.56

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Solution

The fourth proportional to 139,468.92, 192,467.37 and 75,806.56 is: 104,613.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,468.92 : 192,467.37 = 75,806.56 : x
  2. Step 2: Convert to fraction form
    139,468.92/192,467.37 = 75,806.56/x
  3. Step 3: Cross multiply
    139,468.92x = 192,467.37 × 75,806.56
  4. Step 4: Simplify right side
    139,468.92x = 14,590,289,231.95
  5. Step 5: Solve for x
    x = 14,590,289,231.95/139,468.92
  6. Step 6: Final answer
    x = 104,613.19

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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.