Home / 199,821.49-275,740.43-113,789.25

Finding the Fourth Proportional to 199,821.49, 275,740.43 and 113,789.25

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Solution

The fourth proportional to 199,821.49, 275,740.43 and 113,789.25 is: 157,021.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,821.49 : 275,740.43 = 113,789.25 : x
  2. Step 2: Convert to fraction form
    199,821.49/275,740.43 = 113,789.25/x
  3. Step 3: Cross multiply
    199,821.49x = 275,740.43 × 113,789.25
  4. Step 4: Simplify right side
    199,821.49x = 31,376,296,155.43
  5. Step 5: Solve for x
    x = 31,376,296,155.43/199,821.49
  6. Step 6: Final answer
    x = 157,021.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.