Home / 221,670.50-305,907.24-126,183.34

Finding the Fourth Proportional to 221,670.50, 305,907.24 and 126,183.34

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Solution

The fourth proportional to 221,670.50, 305,907.24 and 126,183.34 is: 174,134.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,670.50 : 305,907.24 = 126,183.34 : x
  2. Step 2: Convert to fraction form
    221,670.50/305,907.24 = 126,183.34/x
  3. Step 3: Cross multiply
    221,670.50x = 305,907.24 × 126,183.34
  4. Step 4: Simplify right side
    221,670.50x = 38,600,397,273.38
  5. Step 5: Solve for x
    x = 38,600,397,273.38/221,670.50
  6. Step 6: Final answer
    x = 174,134.12

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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.