Home / 281,768.02-422,717.55-82,109.62

Finding the Fourth Proportional to 281,768.02, 422,717.55 and 82,109.62

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Solution

The fourth proportional to 281,768.02, 422,717.55 and 82,109.62 is: 123,183.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,768.02 : 422,717.55 = 82,109.62 : x
  2. Step 2: Convert to fraction form
    281,768.02/422,717.55 = 82,109.62/x
  3. Step 3: Cross multiply
    281,768.02x = 422,717.55 × 82,109.62
  4. Step 4: Simplify right side
    281,768.02x = 34,709,177,397.83
  5. Step 5: Solve for x
    x = 34,709,177,397.83/281,768.02
  6. Step 6: Final answer
    x = 123,183.52

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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.