Home / 208,781.31-313,116.08-58,986.39

Finding the Fourth Proportional to 208,781.31, 313,116.08 and 58,986.39

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Solution

The fourth proportional to 208,781.31, 313,116.08 and 58,986.39 is: 88,463.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,781.31 : 313,116.08 = 58,986.39 : x
  2. Step 2: Convert to fraction form
    208,781.31/313,116.08 = 58,986.39/x
  3. Step 3: Cross multiply
    208,781.31x = 313,116.08 × 58,986.39
  4. Step 4: Simplify right side
    208,781.31x = 18,469,586,915.22
  5. Step 5: Solve for x
    x = 18,469,586,915.22/208,781.31
  6. Step 6: Final answer
    x = 88,463.79

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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.