Home / 140,789.56-194,240.98-80,316.56

Finding the Fourth Proportional to 140,789.56, 194,240.98 and 80,316.56

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Solution

The fourth proportional to 140,789.56, 194,240.98 and 80,316.56 is: 110,809.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,789.56 : 194,240.98 = 80,316.56 : x
  2. Step 2: Convert to fraction form
    140,789.56/194,240.98 = 80,316.56/x
  3. Step 3: Cross multiply
    140,789.56x = 194,240.98 × 80,316.56
  4. Step 4: Simplify right side
    140,789.56x = 15,600,767,324.63
  5. Step 5: Solve for x
    x = 15,600,767,324.63/140,789.56
  6. Step 6: Final answer
    x = 110,809.12

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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.