Home / 117,920.80-162,453.92-82,049.12

Finding the Fourth Proportional to 117,920.80, 162,453.92 and 82,049.12

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Solution

The fourth proportional to 117,920.80, 162,453.92 and 82,049.12 is: 113,035.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,920.80 : 162,453.92 = 82,049.12 : x
  2. Step 2: Convert to fraction form
    117,920.80/162,453.92 = 82,049.12/x
  3. Step 3: Cross multiply
    117,920.80x = 162,453.92 × 82,049.12
  4. Step 4: Simplify right side
    117,920.80x = 13,329,201,176.55
  5. Step 5: Solve for x
    x = 13,329,201,176.55/117,920.80
  6. Step 6: Final answer
    x = 113,035.20

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1.5x scale

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.