Home / 213,258.20-319,780.04-71,053.11

Finding the Fourth Proportional to 213,258.20, 319,780.04 and 71,053.11

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Solution

The fourth proportional to 213,258.20, 319,780.04 and 71,053.11 is: 106,543.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,258.20 : 319,780.04 = 71,053.11 : x
  2. Step 2: Convert to fraction form
    213,258.20/319,780.04 = 71,053.11/x
  3. Step 3: Cross multiply
    213,258.20x = 319,780.04 × 71,053.11
  4. Step 4: Simplify right side
    213,258.20x = 22,721,366,002.66
  5. Step 5: Solve for x
    x = 22,721,366,002.66/213,258.20
  6. Step 6: Final answer
    x = 106,543.93

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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.