Home / 139,416.18-192,395.01-82,057.65

Finding the Fourth Proportional to 139,416.18, 192,395.01 and 82,057.65

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Solution

The fourth proportional to 139,416.18, 192,395.01 and 82,057.65 is: 113,239.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,416.18 : 192,395.01 = 82,057.65 : x
  2. Step 2: Convert to fraction form
    139,416.18/192,395.01 = 82,057.65/x
  3. Step 3: Cross multiply
    139,416.18x = 192,395.01 × 82,057.65
  4. Step 4: Simplify right side
    139,416.18x = 15,787,482,392.33
  5. Step 5: Solve for x
    x = 15,787,482,392.33/139,416.18
  6. Step 6: Final answer
    x = 113,239.96

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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.