Home / 236,815.81-355,363.82-87,161.21

Finding the Fourth Proportional to 236,815.81, 355,363.82 and 87,161.21

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Solution

The fourth proportional to 236,815.81, 355,363.82 and 87,161.21 is: 130,793.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,815.81 : 355,363.82 = 87,161.21 : x
  2. Step 2: Convert to fraction form
    236,815.81/355,363.82 = 87,161.21/x
  3. Step 3: Cross multiply
    236,815.81x = 355,363.82 × 87,161.21
  4. Step 4: Simplify right side
    236,815.81x = 30,973,940,105.62
  5. Step 5: Solve for x
    x = 30,973,940,105.62/236,815.81
  6. Step 6: Final answer
    x = 130,793.38

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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.