Home / 231,982.35-320,162.30-130,035.39

Finding the Fourth Proportional to 231,982.35, 320,162.30 and 130,035.39

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Solution

The fourth proportional to 231,982.35, 320,162.30 and 130,035.39 is: 179,463.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,982.35 : 320,162.30 = 130,035.39 : x
  2. Step 2: Convert to fraction form
    231,982.35/320,162.30 = 130,035.39/x
  3. Step 3: Cross multiply
    231,982.35x = 320,162.30 × 130,035.39
  4. Step 4: Simplify right side
    231,982.35x = 41,632,428,893.62
  5. Step 5: Solve for x
    x = 41,632,428,893.62/231,982.35
  6. Step 6: Final answer
    x = 179,463.78

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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.