Home / 221,579.09-305,775.22-126,083.73

Finding the Fourth Proportional to 221,579.09, 305,775.22 and 126,083.73

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Solution

The fourth proportional to 221,579.09, 305,775.22 and 126,083.73 is: 173,993.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,579.09 : 305,775.22 = 126,083.73 : x
  2. Step 2: Convert to fraction form
    221,579.09/305,775.22 = 126,083.73/x
  3. Step 3: Cross multiply
    221,579.09x = 305,775.22 × 126,083.73
  4. Step 4: Simplify right side
    221,579.09x = 38,553,280,279.17
  5. Step 5: Solve for x
    x = 38,553,280,279.17/221,579.09
  6. Step 6: Final answer
    x = 173,993.31

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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.