Home / 198,675.87-274,168.80-108,031.05

Finding the Fourth Proportional to 198,675.87, 274,168.80 and 108,031.05

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Solution

The fourth proportional to 198,675.87, 274,168.80 and 108,031.05 is: 149,080.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,675.87 : 274,168.80 = 108,031.05 : x
  2. Step 2: Convert to fraction form
    198,675.87/274,168.80 = 108,031.05/x
  3. Step 3: Cross multiply
    198,675.87x = 274,168.80 × 108,031.05
  4. Step 4: Simplify right side
    198,675.87x = 29,618,743,341.24
  5. Step 5: Solve for x
    x = 29,618,743,341.24/198,675.87
  6. Step 6: Final answer
    x = 149,080.73

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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.