Home / 220,968.38-331,597.85-121,198.50

Finding the Fourth Proportional to 220,968.38, 331,597.85 and 121,198.50

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Solution

The fourth proportional to 220,968.38, 331,597.85 and 121,198.50 is: 181,877.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,968.38 : 331,597.85 = 121,198.50 : x
  2. Step 2: Convert to fraction form
    220,968.38/331,597.85 = 121,198.50/x
  3. Step 3: Cross multiply
    220,968.38x = 331,597.85 × 121,198.50
  4. Step 4: Simplify right side
    220,968.38x = 40,189,161,417.23
  5. Step 5: Solve for x
    x = 40,189,161,417.23/220,968.38
  6. Step 6: Final answer
    x = 181,877.43

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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.