Home / 140,513.46-193,903.77-80,103.57

Finding the Fourth Proportional to 140,513.46, 193,903.77 and 80,103.57

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Solution

The fourth proportional to 140,513.46, 193,903.77 and 80,103.57 is: 110,540.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,513.46 : 193,903.77 = 80,103.57 : x
  2. Step 2: Convert to fraction form
    140,513.46/193,903.77 = 80,103.57/x
  3. Step 3: Cross multiply
    140,513.46x = 193,903.77 × 80,103.57
  4. Step 4: Simplify right side
    140,513.46x = 15,532,384,213.46
  5. Step 5: Solve for x
    x = 15,532,384,213.46/140,513.46
  6. Step 6: Final answer
    x = 110,540.19

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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.