Home / 213,269.41-319,871.31-71,117.16

Finding the Fourth Proportional to 213,269.41, 319,871.31 and 71,117.16

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Solution

The fourth proportional to 213,269.41, 319,871.31 and 71,117.16 is: 106,664.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,269.41 : 319,871.31 = 71,117.16 : x
  2. Step 2: Convert to fraction form
    213,269.41/319,871.31 = 71,117.16/x
  3. Step 3: Cross multiply
    213,269.41x = 319,871.31 × 71,117.16
  4. Step 4: Simplify right side
    213,269.41x = 22,748,339,132.68
  5. Step 5: Solve for x
    x = 22,748,339,132.68/213,269.41
  6. Step 6: Final answer
    x = 106,664.80

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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.