Home / 140,983.39-194,556.68-80,572.78

Finding the Fourth Proportional to 140,983.39, 194,556.68 and 80,572.78

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Solution

The fourth proportional to 140,983.39, 194,556.68 and 80,572.78 is: 111,190.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,983.39 : 194,556.68 = 80,572.78 : x
  2. Step 2: Convert to fraction form
    140,983.39/194,556.68 = 80,572.78/x
  3. Step 3: Cross multiply
    140,983.39x = 194,556.68 × 80,572.78
  4. Step 4: Simplify right side
    140,983.39x = 15,675,971,602.39
  5. Step 5: Solve for x
    x = 15,675,971,602.39/140,983.39
  6. Step 6: Final answer
    x = 111,190.21

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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.