Home / 213,247.08-319,874.07-71,090.43

Finding the Fourth Proportional to 213,247.08, 319,874.07 and 71,090.43

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Solution

The fourth proportional to 213,247.08, 319,874.07 and 71,090.43 is: 106,636.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,247.08 : 319,874.07 = 71,090.43 : x
  2. Step 2: Convert to fraction form
    213,247.08/319,874.07 = 71,090.43/x
  3. Step 3: Cross multiply
    213,247.08x = 319,874.07 × 71,090.43
  4. Step 4: Simplify right side
    213,247.08x = 22,739,984,249.21
  5. Step 5: Solve for x
    x = 22,739,984,249.21/213,247.08
  6. Step 6: Final answer
    x = 106,636.79

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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.