Home / 221,644.41-305,793.39-126,127.18

Finding the Fourth Proportional to 221,644.41, 305,793.39 and 126,127.18

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Solution

The fourth proportional to 221,644.41, 305,793.39 and 126,127.18 is: 174,012.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,644.41 : 305,793.39 = 126,127.18 : x
  2. Step 2: Convert to fraction form
    221,644.41/305,793.39 = 126,127.18/x
  3. Step 3: Cross multiply
    221,644.41x = 305,793.39 × 126,127.18
  4. Step 4: Simplify right side
    221,644.41x = 38,568,857,943.34
  5. Step 5: Solve for x
    x = 38,568,857,943.34/221,644.41
  6. Step 6: Final answer
    x = 174,012.32

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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.