Home / 140,788.17-194,301.60-80,367.89

Finding the Fourth Proportional to 140,788.17, 194,301.60 and 80,367.89

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Solution

The fourth proportional to 140,788.17, 194,301.60 and 80,367.89 is: 110,915.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,788.17 : 194,301.60 = 80,367.89 : x
  2. Step 2: Convert to fraction form
    140,788.17/194,301.60 = 80,367.89/x
  3. Step 3: Cross multiply
    140,788.17x = 194,301.60 × 80,367.89
  4. Step 4: Simplify right side
    140,788.17x = 15,615,608,644.12
  5. Step 5: Solve for x
    x = 15,615,608,644.12/140,788.17
  6. Step 6: Final answer
    x = 110,915.63

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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.