Home / 231,975.33-347,877.65-80,133.78

Finding the Fourth Proportional to 231,975.33, 347,877.65 and 80,133.78

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Solution

The fourth proportional to 231,975.33, 347,877.65 and 80,133.78 is: 120,171.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,975.33 : 347,877.65 = 80,133.78 : x
  2. Step 2: Convert to fraction form
    231,975.33/347,877.65 = 80,133.78/x
  3. Step 3: Cross multiply
    231,975.33x = 347,877.65 × 80,133.78
  4. Step 4: Simplify right side
    231,975.33x = 27,876,750,671.35
  5. Step 5: Solve for x
    x = 27,876,750,671.35/231,975.33
  6. Step 6: Final answer
    x = 120,171.19

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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.