Home / 117,408.24-162,018.90-63,691.38

Finding the Fourth Proportional to 117,408.24, 162,018.90 and 63,691.38

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Solution

The fourth proportional to 117,408.24, 162,018.90 and 63,691.38 is: 87,891.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,408.24 : 162,018.90 = 63,691.38 : x
  2. Step 2: Convert to fraction form
    117,408.24/162,018.90 = 63,691.38/x
  3. Step 3: Cross multiply
    117,408.24x = 162,018.90 × 63,691.38
  4. Step 4: Simplify right side
    117,408.24x = 10,319,207,327.08
  5. Step 5: Solve for x
    x = 10,319,207,327.08/117,408.24
  6. Step 6: Final answer
    x = 87,891.68

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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.