Home / 213,623.38-320,627.67-113,866.66

Finding the Fourth Proportional to 213,623.38, 320,627.67 and 113,866.66

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Solution

The fourth proportional to 213,623.38, 320,627.67 and 113,866.66 is: 170,902.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,623.38 : 320,627.67 = 113,866.66 : x
  2. Step 2: Convert to fraction form
    213,623.38/320,627.67 = 113,866.66/x
  3. Step 3: Cross multiply
    213,623.38x = 320,627.67 × 113,866.66
  4. Step 4: Simplify right side
    213,623.38x = 36,508,801,886.48
  5. Step 5: Solve for x
    x = 36,508,801,886.48/213,623.38
  6. Step 6: Final answer
    x = 170,902.65

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1.5x scale

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.