Home / 140,775.88-194,273.85-80,345.31

Finding the Fourth Proportional to 140,775.88, 194,273.85 and 80,345.31

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Solution

The fourth proportional to 140,775.88, 194,273.85 and 80,345.31 is: 110,878.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,775.88 : 194,273.85 = 80,345.31 : x
  2. Step 2: Convert to fraction form
    140,775.88/194,273.85 = 80,345.31/x
  3. Step 3: Cross multiply
    140,775.88x = 194,273.85 × 80,345.31
  4. Step 4: Simplify right side
    140,775.88x = 15,608,991,330.05
  5. Step 5: Solve for x
    x = 15,608,991,330.05/140,775.88
  6. Step 6: Final answer
    x = 110,878.31

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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.