Home / 187,249.66-280,945.19-112,421.96

Finding the Fourth Proportional to 187,249.66, 280,945.19 and 112,421.96

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Solution

The fourth proportional to 187,249.66, 280,945.19 and 112,421.96 is: 168,675.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,249.66 : 280,945.19 = 112,421.96 : x
  2. Step 2: Convert to fraction form
    187,249.66/280,945.19 = 112,421.96/x
  3. Step 3: Cross multiply
    187,249.66x = 280,945.19 × 112,421.96
  4. Step 4: Simplify right side
    187,249.66x = 31,584,408,842.25
  5. Step 5: Solve for x
    x = 31,584,408,842.25/187,249.66
  6. Step 6: Final answer
    x = 168,675.39

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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.