Home / 198,766.58-298,036.56-135,663.09

Finding the Fourth Proportional to 198,766.58, 298,036.56 and 135,663.09

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Solution

The fourth proportional to 198,766.58, 298,036.56 and 135,663.09 is: 203,417.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,766.58 : 298,036.56 = 135,663.09 : x
  2. Step 2: Convert to fraction form
    198,766.58/298,036.56 = 135,663.09/x
  3. Step 3: Cross multiply
    198,766.58x = 298,036.56 × 135,663.09
  4. Step 4: Simplify right side
    198,766.58x = 40,432,560,053.67
  5. Step 5: Solve for x
    x = 40,432,560,053.67/198,766.58
  6. Step 6: Final answer
    x = 203,417.30

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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.