Home / 140,664.20-194,139.21-80,254.56

Finding the Fourth Proportional to 140,664.20, 194,139.21 and 80,254.56

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Solution

The fourth proportional to 140,664.20, 194,139.21 and 80,254.56 is: 110,764.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,664.20 : 194,139.21 = 80,254.56 : x
  2. Step 2: Convert to fraction form
    140,664.20/194,139.21 = 80,254.56/x
  3. Step 3: Cross multiply
    140,664.20x = 194,139.21 × 80,254.56
  4. Step 4: Simplify right side
    140,664.20x = 15,580,556,877.30
  5. Step 5: Solve for x
    x = 15,580,556,877.30/140,664.20
  6. Step 6: Final answer
    x = 110,764.19

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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.