Home / 213,252.05-319,856.13-71,081.98

Finding the Fourth Proportional to 213,252.05, 319,856.13 and 71,081.98

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Solution

The fourth proportional to 213,252.05, 319,856.13 and 71,081.98 is: 106,615.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,252.05 : 319,856.13 = 71,081.98 : x
  2. Step 2: Convert to fraction form
    213,252.05/319,856.13 = 71,081.98/x
  3. Step 3: Cross multiply
    213,252.05x = 319,856.13 × 71,081.98
  4. Step 4: Simplify right side
    213,252.05x = 22,736,006,235.90
  5. Step 5: Solve for x
    x = 22,736,006,235.90/213,252.05
  6. Step 6: Final answer
    x = 106,615.65

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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.