Home / 213,622.38-320,626.17-113,865.66

Finding the Fourth Proportional to 213,622.38, 320,626.17 and 113,865.66

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Solution

The fourth proportional to 213,622.38, 320,626.17 and 113,865.66 is: 170,901.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,622.38 : 320,626.17 = 113,865.66 : x
  2. Step 2: Convert to fraction form
    213,622.38/320,626.17 = 113,865.66/x
  3. Step 3: Cross multiply
    213,622.38x = 320,626.17 × 113,865.66
  4. Step 4: Simplify right side
    213,622.38x = 36,508,310,460.32
  5. Step 5: Solve for x
    x = 36,508,310,460.32/213,622.38
  6. Step 6: Final answer
    x = 170,901.15

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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.