Home / 231,979.96-347,884.58-80,138.41

Finding the Fourth Proportional to 231,979.96, 347,884.58 and 80,138.41

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Solution

The fourth proportional to 231,979.96, 347,884.58 and 80,138.41 is: 120,178.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,979.96 : 347,884.58 = 80,138.41 : x
  2. Step 2: Convert to fraction form
    231,979.96/347,884.58 = 80,138.41/x
  3. Step 3: Cross multiply
    231,979.96x = 347,884.58 × 80,138.41
  4. Step 4: Simplify right side
    231,979.96x = 27,878,917,104.72
  5. Step 5: Solve for x
    x = 27,878,917,104.72/231,979.96
  6. Step 6: Final answer
    x = 120,178.13

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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.