Home / 140,787.92-194,301.26-80,367.64

Finding the Fourth Proportional to 140,787.92, 194,301.26 and 80,367.64

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Solution

The fourth proportional to 140,787.92, 194,301.26 and 80,367.64 is: 110,915.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,787.92 : 194,301.26 = 80,367.64 : x
  2. Step 2: Convert to fraction form
    140,787.92/194,301.26 = 80,367.64/x
  3. Step 3: Cross multiply
    140,787.92x = 194,301.26 × 80,367.64
  4. Step 4: Simplify right side
    140,787.92x = 15,615,532,827.64
  5. Step 5: Solve for x
    x = 15,615,532,827.64/140,787.92
  6. Step 6: Final answer
    x = 110,915.29

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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.