Home / 231,811.29-347,744.48-82,020.69

Finding the Fourth Proportional to 231,811.29, 347,744.48 and 82,020.69

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Solution

The fourth proportional to 231,811.29, 347,744.48 and 82,020.69 is: 123,040.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,811.29 : 347,744.48 = 82,020.69 : x
  2. Step 2: Convert to fraction form
    231,811.29/347,744.48 = 82,020.69/x
  3. Step 3: Cross multiply
    231,811.29x = 347,744.48 × 82,020.69
  4. Step 4: Simplify right side
    231,811.29x = 28,522,241,783.19
  5. Step 5: Solve for x
    x = 28,522,241,783.19/231,811.29
  6. Step 6: Final answer
    x = 123,040.78

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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.