Home / 100,859.67-139,183.83-55,537.29

Finding the Fourth Proportional to 100,859.67, 139,183.83 and 55,537.29

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Solution

The fourth proportional to 100,859.67, 139,183.83 and 55,537.29 is: 76,640.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,859.67 : 139,183.83 = 55,537.29 : x
  2. Step 2: Convert to fraction form
    100,859.67/139,183.83 = 55,537.29/x
  3. Step 3: Cross multiply
    100,859.67x = 139,183.83 × 55,537.29
  4. Step 4: Simplify right side
    100,859.67x = 7,729,892,730.02
  5. Step 5: Solve for x
    x = 7,729,892,730.02/100,859.67
  6. Step 6: Final answer
    x = 76,640.08

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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.