Home / 231,939.64-320,046.82-136,411.48

Finding the Fourth Proportional to 231,939.64, 320,046.82 and 136,411.48

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Solution

The fourth proportional to 231,939.64, 320,046.82 and 136,411.48 is: 188,230.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,939.64 : 320,046.82 = 136,411.48 : x
  2. Step 2: Convert to fraction form
    231,939.64/320,046.82 = 136,411.48/x
  3. Step 3: Cross multiply
    231,939.64x = 320,046.82 × 136,411.48
  4. Step 4: Simplify right side
    231,939.64x = 43,658,060,385.49
  5. Step 5: Solve for x
    x = 43,658,060,385.49/231,939.64
  6. Step 6: Final answer
    x = 188,230.27

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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.