Home / 221,236.85-305,333.06-125,757.90

Finding the Fourth Proportional to 221,236.85, 305,333.06 and 125,757.90

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Solution

The fourth proportional to 221,236.85, 305,333.06 and 125,757.90 is: 173,560.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,236.85 : 305,333.06 = 125,757.90 : x
  2. Step 2: Convert to fraction form
    221,236.85/305,333.06 = 125,757.90/x
  3. Step 3: Cross multiply
    221,236.85x = 305,333.06 × 125,757.90
  4. Step 4: Simplify right side
    221,236.85x = 38,398,043,797.38
  5. Step 5: Solve for x
    x = 38,398,043,797.38/221,236.85
  6. Step 6: Final answer
    x = 173,560.79

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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.