Home / 225,963.03-338,944.41-85,721.66

Finding the Fourth Proportional to 225,963.03, 338,944.41 and 85,721.66

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Solution

The fourth proportional to 225,963.03, 338,944.41 and 85,721.66 is: 128,582.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,963.03 : 338,944.41 = 85,721.66 : x
  2. Step 2: Convert to fraction form
    225,963.03/338,944.41 = 85,721.66/x
  3. Step 3: Cross multiply
    225,963.03x = 338,944.41 × 85,721.66
  4. Step 4: Simplify right side
    225,963.03x = 29,054,877,472.92
  5. Step 5: Solve for x
    x = 29,054,877,472.92/225,963.03
  6. Step 6: Final answer
    x = 128,582.44

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1.5x scale

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.