Home / 205,211.22-283,196.25-128,733.54

Finding the Fourth Proportional to 205,211.22, 283,196.25 and 128,733.54

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Solution

The fourth proportional to 205,211.22, 283,196.25 and 128,733.54 is: 177,655.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,211.22 : 283,196.25 = 128,733.54 : x
  2. Step 2: Convert to fraction form
    205,211.22/283,196.25 = 128,733.54/x
  3. Step 3: Cross multiply
    205,211.22x = 283,196.25 × 128,733.54
  4. Step 4: Simplify right side
    205,211.22x = 36,456,855,777.23
  5. Step 5: Solve for x
    x = 36,456,855,777.23/205,211.22
  6. Step 6: Final answer
    x = 177,655.28

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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.