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Finding the Fourth Proportional to 139,960.08, 193,150.08 and 79,540.92

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Solution

The fourth proportional to 139,960.08, 193,150.08 and 79,540.92 is: 109,769.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,960.08 : 193,150.08 = 79,540.92 : x
  2. Step 2: Convert to fraction form
    139,960.08/193,150.08 = 79,540.92/x
  3. Step 3: Cross multiply
    139,960.08x = 193,150.08 × 79,540.92
  4. Step 4: Simplify right side
    139,960.08x = 15,363,335,061.27
  5. Step 5: Solve for x
    x = 15,363,335,061.27/139,960.08
  6. Step 6: Final answer
    x = 109,769.41

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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.