Home / 197,511.51-296,020.92-90,781.96

Finding the Fourth Proportional to 197,511.51, 296,020.92 and 90,781.96

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Solution

The fourth proportional to 197,511.51, 296,020.92 and 90,781.96 is: 136,059.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,511.51 : 296,020.92 = 90,781.96 : x
  2. Step 2: Convert to fraction form
    197,511.51/296,020.92 = 90,781.96/x
  3. Step 3: Cross multiply
    197,511.51x = 296,020.92 × 90,781.96
  4. Step 4: Simplify right side
    197,511.51x = 26,873,359,318.60
  5. Step 5: Solve for x
    x = 26,873,359,318.60/197,511.51
  6. Step 6: Final answer
    x = 136,059.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.