Home / 172,287.12-258,496.56-67,179.36

Finding the Fourth Proportional to 172,287.12, 258,496.56 and 67,179.36

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Solution

The fourth proportional to 172,287.12, 258,496.56 and 67,179.36 is: 100,794.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,287.12 : 258,496.56 = 67,179.36 : x
  2. Step 2: Convert to fraction form
    172,287.12/258,496.56 = 67,179.36/x
  3. Step 3: Cross multiply
    172,287.12x = 258,496.56 × 67,179.36
  4. Step 4: Simplify right side
    172,287.12x = 17,365,633,463.00
  5. Step 5: Solve for x
    x = 17,365,633,463.00/172,287.12
  6. Step 6: Final answer
    x = 100,794.73

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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.