Home / 116,910.06-161,297.82-71,540.70

Finding the Fourth Proportional to 116,910.06, 161,297.82 and 71,540.70

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Solution

The fourth proportional to 116,910.06, 161,297.82 and 71,540.70 is: 98,702.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,910.06 : 161,297.82 = 71,540.70 : x
  2. Step 2: Convert to fraction form
    116,910.06/161,297.82 = 71,540.70/x
  3. Step 3: Cross multiply
    116,910.06x = 161,297.82 × 71,540.70
  4. Step 4: Simplify right side
    116,910.06x = 11,539,358,951.27
  5. Step 5: Solve for x
    x = 11,539,358,951.27/116,910.06
  6. Step 6: Final answer
    x = 98,702.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.