Home / 213,679.22-320,535.68-71,525.28

Finding the Fourth Proportional to 213,679.22, 320,535.68 and 71,525.28

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Solution

The fourth proportional to 213,679.22, 320,535.68 and 71,525.28 is: 107,293.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,679.22 : 320,535.68 = 71,525.28 : x
  2. Step 2: Convert to fraction form
    213,679.22/320,535.68 = 71,525.28/x
  3. Step 3: Cross multiply
    213,679.22x = 320,535.68 × 71,525.28
  4. Step 4: Simplify right side
    213,679.22x = 22,926,403,705.69
  5. Step 5: Solve for x
    x = 22,926,403,705.69/213,679.22
  6. Step 6: Final answer
    x = 107,293.56

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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.