Home / 213,327.80-319,884.24-71,122.64

Finding the Fourth Proportional to 213,327.80, 319,884.24 and 71,122.64

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Solution

The fourth proportional to 213,327.80, 319,884.24 and 71,122.64 is: 106,648.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,327.80 : 319,884.24 = 71,122.64 : x
  2. Step 2: Convert to fraction form
    213,327.80/319,884.24 = 71,122.64/x
  3. Step 3: Cross multiply
    213,327.80x = 319,884.24 × 71,122.64
  4. Step 4: Simplify right side
    213,327.80x = 22,751,011,643.19
  5. Step 5: Solve for x
    x = 22,751,011,643.19/213,327.80
  6. Step 6: Final answer
    x = 106,648.13

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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.