Home / 231,979.28-347,883.55-80,137.71

Finding the Fourth Proportional to 231,979.28, 347,883.55 and 80,137.71

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Solution

The fourth proportional to 231,979.28, 347,883.55 and 80,137.71 is: 120,177.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,979.28 : 347,883.55 = 80,137.71 : x
  2. Step 2: Convert to fraction form
    231,979.28/347,883.55 = 80,137.71/x
  3. Step 3: Cross multiply
    231,979.28x = 347,883.55 × 80,137.71
  4. Step 4: Simplify right side
    231,979.28x = 27,878,590,843.33
  5. Step 5: Solve for x
    x = 27,878,590,843.33/231,979.28
  6. Step 6: Final answer
    x = 120,177.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.