Home / 231,605.20-347,435.82-81,814.84

Finding the Fourth Proportional to 231,605.20, 347,435.82 and 81,814.84

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Solution

The fourth proportional to 231,605.20, 347,435.82 and 81,814.84 is: 122,732.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,605.20 : 347,435.82 = 81,814.84 : x
  2. Step 2: Convert to fraction form
    231,605.20/347,435.82 = 81,814.84/x
  3. Step 3: Cross multiply
    231,605.20x = 347,435.82 × 81,814.84
  4. Step 4: Simplify right side
    231,605.20x = 28,425,403,877.32
  5. Step 5: Solve for x
    x = 28,425,403,877.32/231,605.20
  6. Step 6: Final answer
    x = 122,732.15

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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.