Home / 213,268.41-319,869.81-71,116.16

Finding the Fourth Proportional to 213,268.41, 319,869.81 and 71,116.16

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Solution

The fourth proportional to 213,268.41, 319,869.81 and 71,116.16 is: 106,663.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,268.41 : 319,869.81 = 71,116.16 : x
  2. Step 2: Convert to fraction form
    213,268.41/319,869.81 = 71,116.16/x
  3. Step 3: Cross multiply
    213,268.41x = 319,869.81 × 71,116.16
  4. Step 4: Simplify right side
    213,268.41x = 22,747,910,987.78
  5. Step 5: Solve for x
    x = 22,747,910,987.78/213,268.41
  6. Step 6: Final answer
    x = 106,663.29

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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.