Home / 221,660.37-305,893.26-126,173.21

Finding the Fourth Proportional to 221,660.37, 305,893.26 and 126,173.21

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Solution

The fourth proportional to 221,660.37, 305,893.26 and 126,173.21 is: 174,120.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,660.37 : 305,893.26 = 126,173.21 : x
  2. Step 2: Convert to fraction form
    221,660.37/305,893.26 = 126,173.21/x
  3. Step 3: Cross multiply
    221,660.37x = 305,893.26 × 126,173.21
  4. Step 4: Simplify right side
    221,660.37x = 38,595,534,531.56
  5. Step 5: Solve for x
    x = 38,595,534,531.56/221,660.37
  6. Step 6: Final answer
    x = 174,120.14

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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.