Home / 204,109.12-306,195.36-104,215.12

Finding the Fourth Proportional to 204,109.12, 306,195.36 and 104,215.12

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Solution

The fourth proportional to 204,109.12, 306,195.36 and 104,215.12 is: 156,338.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,109.12 : 306,195.36 = 104,215.12 : x
  2. Step 2: Convert to fraction form
    204,109.12/306,195.36 = 104,215.12/x
  3. Step 3: Cross multiply
    204,109.12x = 306,195.36 × 104,215.12
  4. Step 4: Simplify right side
    204,109.12x = 31,910,186,185.84
  5. Step 5: Solve for x
    x = 31,910,186,185.84/204,109.12
  6. Step 6: Final answer
    x = 156,338.86

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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.