Home / 213,265.41-319,865.31-71,113.16

Finding the Fourth Proportional to 213,265.41, 319,865.31 and 71,113.16

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Solution

The fourth proportional to 213,265.41, 319,865.31 and 71,113.16 is: 106,658.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,265.41 : 319,865.31 = 71,113.16 : x
  2. Step 2: Convert to fraction form
    213,265.41/319,865.31 = 71,113.16/x
  3. Step 3: Cross multiply
    213,265.41x = 319,865.31 × 71,113.16
  4. Step 4: Simplify right side
    213,265.41x = 22,746,631,369.15
  5. Step 5: Solve for x
    x = 22,746,631,369.15/213,265.41
  6. Step 6: Final answer
    x = 106,658.79

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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.