Home / 198,925.50-298,388.25-67,597.50

Finding the Fourth Proportional to 198,925.50, 298,388.25 and 67,597.50

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Solution

The fourth proportional to 198,925.50, 298,388.25 and 67,597.50 is: 101,396.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,925.50 : 298,388.25 = 67,597.50 : x
  2. Step 2: Convert to fraction form
    198,925.50/298,388.25 = 67,597.50/x
  3. Step 3: Cross multiply
    198,925.50x = 298,388.25 × 67,597.50
  4. Step 4: Simplify right side
    198,925.50x = 20,170,299,729.38
  5. Step 5: Solve for x
    x = 20,170,299,729.38/198,925.50
  6. Step 6: Final answer
    x = 101,396.25

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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.