Home / 231,579.69-347,188.05-91,443.21

Finding the Fourth Proportional to 231,579.69, 347,188.05 and 91,443.21

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Solution

The fourth proportional to 231,579.69, 347,188.05 and 91,443.21 is: 137,093.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,579.69 : 347,188.05 = 91,443.21 : x
  2. Step 2: Convert to fraction form
    231,579.69/347,188.05 = 91,443.21/x
  3. Step 3: Cross multiply
    231,579.69x = 347,188.05 × 91,443.21
  4. Step 4: Simplify right side
    231,579.69x = 31,747,989,765.64
  5. Step 5: Solve for x
    x = 31,747,989,765.64/231,579.69
  6. Step 6: Final answer
    x = 137,093.15

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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.