Home / 117,751.24-162,414.38-77,452.12

Finding the Fourth Proportional to 117,751.24, 162,414.38 and 77,452.12

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Solution

The fourth proportional to 117,751.24, 162,414.38 and 77,452.12 is: 106,829.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,751.24 : 162,414.38 = 77,452.12 : x
  2. Step 2: Convert to fraction form
    117,751.24/162,414.38 = 77,452.12/x
  3. Step 3: Cross multiply
    117,751.24x = 162,414.38 × 77,452.12
  4. Step 4: Simplify right side
    117,751.24x = 12,579,338,049.49
  5. Step 5: Solve for x
    x = 12,579,338,049.49/117,751.24
  6. Step 6: Final answer
    x = 106,829.77

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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.