Home / 139,180.33-192,069.39-75,518.65

Finding the Fourth Proportional to 139,180.33, 192,069.39 and 75,518.65

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Solution

The fourth proportional to 139,180.33, 192,069.39 and 75,518.65 is: 104,216.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,180.33 : 192,069.39 = 75,518.65 : x
  2. Step 2: Convert to fraction form
    139,180.33/192,069.39 = 75,518.65/x
  3. Step 3: Cross multiply
    139,180.33x = 192,069.39 × 75,518.65
  4. Step 4: Simplify right side
    139,180.33x = 14,504,821,039.12
  5. Step 5: Solve for x
    x = 14,504,821,039.12/139,180.33
  6. Step 6: Final answer
    x = 104,216.03

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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.