Home / 198,961.53-298,042.56-98,818.80

Finding the Fourth Proportional to 198,961.53, 298,042.56 and 98,818.80

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Solution

The fourth proportional to 198,961.53, 298,042.56 and 98,818.80 is: 148,029.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,961.53 : 298,042.56 = 98,818.80 : x
  2. Step 2: Convert to fraction form
    198,961.53/298,042.56 = 98,818.80/x
  3. Step 3: Cross multiply
    198,961.53x = 298,042.56 × 98,818.80
  4. Step 4: Simplify right side
    198,961.53x = 29,452,208,128.13
  5. Step 5: Solve for x
    x = 29,452,208,128.13/198,961.53
  6. Step 6: Final answer
    x = 148,029.66

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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.