Home / 198,799.74-274,344.29-108,155.69

Finding the Fourth Proportional to 198,799.74, 274,344.29 and 108,155.69

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Solution

The fourth proportional to 198,799.74, 274,344.29 and 108,155.69 is: 149,255.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,799.74 : 274,344.29 = 108,155.69 : x
  2. Step 2: Convert to fraction form
    198,799.74/274,344.29 = 108,155.69/x
  3. Step 3: Cross multiply
    198,799.74x = 274,344.29 × 108,155.69
  4. Step 4: Simplify right side
    198,799.74x = 29,671,895,982.51
  5. Step 5: Solve for x
    x = 29,671,895,982.51/198,799.74
  6. Step 6: Final answer
    x = 149,255.21

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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.