Home / 198,819.97-298,220.22-74,151.25

Finding the Fourth Proportional to 198,819.97, 298,220.22 and 74,151.25

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Solution

The fourth proportional to 198,819.97, 298,220.22 and 74,151.25 is: 111,223.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,819.97 : 298,220.22 = 74,151.25 : x
  2. Step 2: Convert to fraction form
    198,819.97/298,220.22 = 74,151.25/x
  3. Step 3: Cross multiply
    198,819.97x = 298,220.22 × 74,151.25
  4. Step 4: Simplify right side
    198,819.97x = 22,113,402,088.28
  5. Step 5: Solve for x
    x = 22,113,402,088.28/198,819.97
  6. Step 6: Final answer
    x = 111,223.24

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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.