Home / 213,252.06-319,859.48-86,905.56

Finding the Fourth Proportional to 213,252.06, 319,859.48 and 86,905.56

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Solution

The fourth proportional to 213,252.06, 319,859.48 and 86,905.56 is: 130,350.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,252.06 : 319,859.48 = 86,905.56 : x
  2. Step 2: Convert to fraction form
    213,252.06/319,859.48 = 86,905.56/x
  3. Step 3: Cross multiply
    213,252.06x = 319,859.48 × 86,905.56
  4. Step 4: Simplify right side
    213,252.06x = 27,797,567,230.71
  5. Step 5: Solve for x
    x = 27,797,567,230.71/213,252.06
  6. Step 6: Final answer
    x = 130,350.76

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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.