Home / 213,233.46-319,960.89-86,966.34

Finding the Fourth Proportional to 213,233.46, 319,960.89 and 86,966.34

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Solution

The fourth proportional to 213,233.46, 319,960.89 and 86,966.34 is: 130,494.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,233.46 : 319,960.89 = 86,966.34 : x
  2. Step 2: Convert to fraction form
    213,233.46/319,960.89 = 86,966.34/x
  3. Step 3: Cross multiply
    213,233.46x = 319,960.89 × 86,966.34
  4. Step 4: Simplify right side
    213,233.46x = 27,825,827,546.44
  5. Step 5: Solve for x
    x = 27,825,827,546.44/213,233.46
  6. Step 6: Final answer
    x = 130,494.66

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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.