Home / 199,819.72-299,743.26-66,694.60

Finding the Fourth Proportional to 199,819.72, 299,743.26 and 66,694.60

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Solution

The fourth proportional to 199,819.72, 299,743.26 and 66,694.60 is: 100,046.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,819.72 : 299,743.26 = 66,694.60 : x
  2. Step 2: Convert to fraction form
    199,819.72/299,743.26 = 66,694.60/x
  3. Step 3: Cross multiply
    199,819.72x = 299,743.26 × 66,694.60
  4. Step 4: Simplify right side
    199,819.72x = 19,991,256,828.40
  5. Step 5: Solve for x
    x = 19,991,256,828.40/199,819.72
  6. Step 6: Final answer
    x = 100,046.47

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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.