Home / 199,859.01-275,821.16-113,821.64

Finding the Fourth Proportional to 199,859.01, 275,821.16 and 113,821.64

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Solution

The fourth proportional to 199,859.01, 275,821.16 and 113,821.64 is: 157,082.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,859.01 : 275,821.16 = 113,821.64 : x
  2. Step 2: Convert to fraction form
    199,859.01/275,821.16 = 113,821.64/x
  3. Step 3: Cross multiply
    199,859.01x = 275,821.16 × 113,821.64
  4. Step 4: Simplify right side
    199,859.01x = 31,394,416,777.90
  5. Step 5: Solve for x
    x = 31,394,416,777.90/199,859.01
  6. Step 6: Final answer
    x = 157,082.82

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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.