Home / 231,961.14-320,076.45-136,432.98

Finding the Fourth Proportional to 231,961.14, 320,076.45 and 136,432.98

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Solution

The fourth proportional to 231,961.14, 320,076.45 and 136,432.98 is: 188,259.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,961.14 : 320,076.45 = 136,432.98 : x
  2. Step 2: Convert to fraction form
    231,961.14/320,076.45 = 136,432.98/x
  3. Step 3: Cross multiply
    231,961.14x = 320,076.45 × 136,432.98
  4. Step 4: Simplify right side
    231,961.14x = 43,668,983,901.32
  5. Step 5: Solve for x
    x = 43,668,983,901.32/231,961.14
  6. Step 6: Final answer
    x = 188,259.91

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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.