Home / 213,266.91-319,867.56-71,114.66

Finding the Fourth Proportional to 213,266.91, 319,867.56 and 71,114.66

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Solution

The fourth proportional to 213,266.91, 319,867.56 and 71,114.66 is: 106,661.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,266.91 : 319,867.56 = 71,114.66 : x
  2. Step 2: Convert to fraction form
    213,266.91/319,867.56 = 71,114.66/x
  3. Step 3: Cross multiply
    213,266.91x = 319,867.56 × 71,114.66
  4. Step 4: Simplify right side
    213,266.91x = 22,747,271,175.09
  5. Step 5: Solve for x
    x = 22,747,271,175.09/213,266.91
  6. Step 6: Final answer
    x = 106,661.04

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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.