Home / 206,629.92-285,139.44-115,974.72

Finding the Fourth Proportional to 206,629.92, 285,139.44 and 115,974.72

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Solution

The fourth proportional to 206,629.92, 285,139.44 and 115,974.72 is: 160,039.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,629.92 : 285,139.44 = 115,974.72 : x
  2. Step 2: Convert to fraction form
    206,629.92/285,139.44 = 115,974.72/x
  3. Step 3: Cross multiply
    206,629.92x = 285,139.44 × 115,974.72
  4. Step 4: Simplify right side
    206,629.92x = 33,068,966,714.96
  5. Step 5: Solve for x
    x = 33,068,966,714.96/206,629.92
  6. Step 6: Final answer
    x = 160,039.59

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1.5x scale

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.