Home / 221,579.10-332,152.65-126,711.90

Finding the Fourth Proportional to 221,579.10, 332,152.65 and 126,711.90

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Solution

The fourth proportional to 221,579.10, 332,152.65 and 126,711.90 is: 189,944.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,579.10 : 332,152.65 = 126,711.90 : x
  2. Step 2: Convert to fraction form
    221,579.10/332,152.65 = 126,711.90/x
  3. Step 3: Cross multiply
    221,579.10x = 332,152.65 × 126,711.90
  4. Step 4: Simplify right side
    221,579.10x = 42,087,693,371.54
  5. Step 5: Solve for x
    x = 42,087,693,371.54/221,579.10
  6. Step 6: Final answer
    x = 189,944.33

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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.