Home / 139,768.07-192,854.30-82,425.38

Finding the Fourth Proportional to 139,768.07, 192,854.30 and 82,425.38

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Solution

The fourth proportional to 139,768.07, 192,854.30 and 82,425.38 is: 113,731.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,768.07 : 192,854.30 = 82,425.38 : x
  2. Step 2: Convert to fraction form
    139,768.07/192,854.30 = 82,425.38/x
  3. Step 3: Cross multiply
    139,768.07x = 192,854.30 × 82,425.38
  4. Step 4: Simplify right side
    139,768.07x = 15,896,087,585.74
  5. Step 5: Solve for x
    x = 15,896,087,585.74/139,768.07
  6. Step 6: Final answer
    x = 113,731.90

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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.