Home / 139,589.93-192,628.27-82,231.61

Finding the Fourth Proportional to 139,589.93, 192,628.27 and 82,231.61

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Solution

The fourth proportional to 139,589.93, 192,628.27 and 82,231.61 is: 113,476.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,589.93 : 192,628.27 = 82,231.61 : x
  2. Step 2: Convert to fraction form
    139,589.93/192,628.27 = 82,231.61/x
  3. Step 3: Cross multiply
    139,589.93x = 192,628.27 × 82,231.61
  4. Step 4: Simplify right side
    139,589.93x = 15,840,131,913.26
  5. Step 5: Solve for x
    x = 15,840,131,913.26/139,589.93
  6. Step 6: Final answer
    x = 113,476.18

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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.