Home / 140,971.75-194,523.09-80,546.31

Finding the Fourth Proportional to 140,971.75, 194,523.09 and 80,546.31

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Solution

The fourth proportional to 140,971.75, 194,523.09 and 80,546.31 is: 111,143.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,971.75 : 194,523.09 = 80,546.31 : x
  2. Step 2: Convert to fraction form
    140,971.75/194,523.09 = 80,546.31/x
  3. Step 3: Cross multiply
    140,971.75x = 194,523.09 × 80,546.31
  4. Step 4: Simplify right side
    140,971.75x = 15,668,116,939.76
  5. Step 5: Solve for x
    x = 15,668,116,939.76/140,971.75
  6. Step 6: Final answer
    x = 111,143.66

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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.