Home / 221,578.09-305,773.84-126,082.73

Finding the Fourth Proportional to 221,578.09, 305,773.84 and 126,082.73

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Solution

The fourth proportional to 221,578.09, 305,773.84 and 126,082.73 is: 173,991.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,578.09 : 305,773.84 = 126,082.73 : x
  2. Step 2: Convert to fraction form
    221,578.09/305,773.84 = 126,082.73/x
  3. Step 3: Cross multiply
    221,578.09x = 305,773.84 × 126,082.73
  4. Step 4: Simplify right side
    221,578.09x = 38,552,800,509.78
  5. Step 5: Solve for x
    x = 38,552,800,509.78/221,578.09
  6. Step 6: Final answer
    x = 173,991.93

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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.