Home / 144,104.82-198,856.40-80,446.66

Finding the Fourth Proportional to 144,104.82, 198,856.40 and 80,446.66

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Solution

The fourth proportional to 144,104.82, 198,856.40 and 80,446.66 is: 111,011.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,104.82 : 198,856.40 = 80,446.66 : x
  2. Step 2: Convert to fraction form
    144,104.82/198,856.40 = 80,446.66/x
  3. Step 3: Cross multiply
    144,104.82x = 198,856.40 × 80,446.66
  4. Step 4: Simplify right side
    144,104.82x = 15,997,333,199.62
  5. Step 5: Solve for x
    x = 15,997,333,199.62/144,104.82
  6. Step 6: Final answer
    x = 111,011.78

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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.