Home / 113,849.12-170,781.88-43,728.42

Finding the Fourth Proportional to 113,849.12, 170,781.88 and 43,728.42

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Solution

The fourth proportional to 113,849.12, 170,781.88 and 43,728.42 is: 65,595.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,849.12 : 170,781.88 = 43,728.42 : x
  2. Step 2: Convert to fraction form
    113,849.12/170,781.88 = 43,728.42/x
  3. Step 3: Cross multiply
    113,849.12x = 170,781.88 × 43,728.42
  4. Step 4: Simplify right side
    113,849.12x = 7,468,021,777.03
  5. Step 5: Solve for x
    x = 7,468,021,777.03/113,849.12
  6. Step 6: Final answer
    x = 65,595.78

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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.