Home / 213,843.56-320,126.24-129,348.02

Finding the Fourth Proportional to 213,843.56, 320,126.24 and 129,348.02

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Solution

The fourth proportional to 213,843.56, 320,126.24 and 129,348.02 is: 193,635.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,843.56 : 320,126.24 = 129,348.02 : x
  2. Step 2: Convert to fraction form
    213,843.56/320,126.24 = 129,348.02/x
  3. Step 3: Cross multiply
    213,843.56x = 320,126.24 × 129,348.02
  4. Step 4: Simplify right side
    213,843.56x = 41,407,695,294.04
  5. Step 5: Solve for x
    x = 41,407,695,294.04/213,843.56
  6. Step 6: Final answer
    x = 193,635.46

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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.