Home / 82,195.97-123,194.81-40,012.82

Finding the Fourth Proportional to 82,195.97, 123,194.81 and 40,012.82

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Solution

The fourth proportional to 82,195.97, 123,194.81 and 40,012.82 is: 59,970.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,195.97 : 123,194.81 = 40,012.82 : x
  2. Step 2: Convert to fraction form
    82,195.97/123,194.81 = 40,012.82/x
  3. Step 3: Cross multiply
    82,195.97x = 123,194.81 × 40,012.82
  4. Step 4: Simplify right side
    82,195.97x = 4,929,371,757.46
  5. Step 5: Solve for x
    x = 4,929,371,757.46/82,195.97
  6. Step 6: Final answer
    x = 59,970.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.