Home / 139,542.15-192,576.57-82,219.67

Finding the Fourth Proportional to 139,542.15, 192,576.57 and 82,219.67

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Solution

The fourth proportional to 139,542.15, 192,576.57 and 82,219.67 is: 113,468.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,542.15 : 192,576.57 = 82,219.67 : x
  2. Step 2: Convert to fraction form
    139,542.15/192,576.57 = 82,219.67/x
  3. Step 3: Cross multiply
    139,542.15x = 192,576.57 × 82,219.67
  4. Step 4: Simplify right side
    139,542.15x = 15,833,581,624.03
  5. Step 5: Solve for x
    x = 15,833,581,624.03/139,542.15
  6. Step 6: Final answer
    x = 113,468.09

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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.