Home / 221,662.49-305,896.19-126,175.34

Finding the Fourth Proportional to 221,662.49, 305,896.19 and 126,175.34

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Solution

The fourth proportional to 221,662.49, 305,896.19 and 126,175.34 is: 174,123.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,662.49 : 305,896.19 = 126,175.34 : x
  2. Step 2: Convert to fraction form
    221,662.49/305,896.19 = 126,175.34/x
  3. Step 3: Cross multiply
    221,662.49x = 305,896.19 × 126,175.34
  4. Step 4: Simplify right side
    221,662.49x = 38,596,554,563.91
  5. Step 5: Solve for x
    x = 38,596,554,563.91/221,662.49
  6. Step 6: Final answer
    x = 174,123.07

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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.