Home / 143,734.82-198,354.30-80,074.88

Finding the Fourth Proportional to 143,734.82, 198,354.30 and 80,074.88

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Solution

The fourth proportional to 143,734.82, 198,354.30 and 80,074.88 is: 110,503.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,734.82 : 198,354.30 = 80,074.88 : x
  2. Step 2: Convert to fraction form
    143,734.82/198,354.30 = 80,074.88/x
  3. Step 3: Cross multiply
    143,734.82x = 198,354.30 × 80,074.88
  4. Step 4: Simplify right side
    143,734.82x = 15,883,196,769.98
  5. Step 5: Solve for x
    x = 15,883,196,769.98/143,734.82
  6. Step 6: Final answer
    x = 110,503.47

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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.