Home / 140,037.47-193,250.82-79,608.11

Finding the Fourth Proportional to 140,037.47, 193,250.82 and 79,608.11

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Solution

The fourth proportional to 140,037.47, 193,250.82 and 79,608.11 is: 109,858.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,037.47 : 193,250.82 = 79,608.11 : x
  2. Step 2: Convert to fraction form
    140,037.47/193,250.82 = 79,608.11/x
  3. Step 3: Cross multiply
    140,037.47x = 193,250.82 × 79,608.11
  4. Step 4: Simplify right side
    140,037.47x = 15,384,332,507.67
  5. Step 5: Solve for x
    x = 15,384,332,507.67/140,037.47
  6. Step 6: Final answer
    x = 109,858.69

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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.