Home / 198,556.95-297,771.39-65,405.55

Finding the Fourth Proportional to 198,556.95, 297,771.39 and 65,405.55

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Solution

The fourth proportional to 198,556.95, 297,771.39 and 65,405.55 is: 98,087.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,556.95 : 297,771.39 = 65,405.55 : x
  2. Step 2: Convert to fraction form
    198,556.95/297,771.39 = 65,405.55/x
  3. Step 3: Cross multiply
    198,556.95x = 297,771.39 × 65,405.55
  4. Step 4: Simplify right side
    198,556.95x = 19,475,901,537.21
  5. Step 5: Solve for x
    x = 19,475,901,537.21/198,556.95
  6. Step 6: Final answer
    x = 98,087.23

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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.