Home / 143,820.98-198,473.88-80,162.82

Finding the Fourth Proportional to 143,820.98, 198,473.88 and 80,162.82

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Solution

The fourth proportional to 143,820.98, 198,473.88 and 80,162.82 is: 110,625.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,820.98 : 198,473.88 = 80,162.82 : x
  2. Step 2: Convert to fraction form
    143,820.98/198,473.88 = 80,162.82/x
  3. Step 3: Cross multiply
    143,820.98x = 198,473.88 × 80,162.82
  4. Step 4: Simplify right side
    143,820.98x = 15,910,225,917.14
  5. Step 5: Solve for x
    x = 15,910,225,917.14/143,820.98
  6. Step 6: Final answer
    x = 110,625.21

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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.