Home / 139,734.75-192,882.56-83,144.91

Finding the Fourth Proportional to 139,734.75, 192,882.56 and 83,144.91

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Solution

The fourth proportional to 139,734.75, 192,882.56 and 83,144.91 is: 114,768.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,734.75 : 192,882.56 = 83,144.91 : x
  2. Step 2: Convert to fraction form
    139,734.75/192,882.56 = 83,144.91/x
  3. Step 3: Cross multiply
    139,734.75x = 192,882.56 × 83,144.91
  4. Step 4: Simplify right side
    139,734.75x = 16,037,202,676.05
  5. Step 5: Solve for x
    x = 16,037,202,676.05/139,734.75
  6. Step 6: Final answer
    x = 114,768.89

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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.