Home / 213,270.36-319,895.82-71,105.64

Finding the Fourth Proportional to 213,270.36, 319,895.82 and 71,105.64

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Solution

The fourth proportional to 213,270.36, 319,895.82 and 71,105.64 is: 106,655.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,270.36 : 319,895.82 = 71,105.64 : x
  2. Step 2: Convert to fraction form
    213,270.36/319,895.82 = 71,105.64/x
  3. Step 3: Cross multiply
    213,270.36x = 319,895.82 × 71,105.64
  4. Step 4: Simplify right side
    213,270.36x = 22,746,397,014.42
  5. Step 5: Solve for x
    x = 22,746,397,014.42/213,270.36
  6. Step 6: Final answer
    x = 106,655.22

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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.