Home / 143,915.49-198,604.13-80,255.97

Finding the Fourth Proportional to 143,915.49, 198,604.13 and 80,255.97

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Solution

The fourth proportional to 143,915.49, 198,604.13 and 80,255.97 is: 110,753.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,915.49 : 198,604.13 = 80,255.97 : x
  2. Step 2: Convert to fraction form
    143,915.49/198,604.13 = 80,255.97/x
  3. Step 3: Cross multiply
    143,915.49x = 198,604.13 × 80,255.97
  4. Step 4: Simplify right side
    143,915.49x = 15,939,166,697.88
  5. Step 5: Solve for x
    x = 15,939,166,697.88/143,915.49
  6. Step 6: Final answer
    x = 110,753.66

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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.