Home / 172,176.30-258,284.07-45,821.73

Finding the Fourth Proportional to 172,176.30, 258,284.07 and 45,821.73

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Solution

The fourth proportional to 172,176.30, 258,284.07 and 45,821.73 is: 68,737.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,176.30 : 258,284.07 = 45,821.73 : x
  2. Step 2: Convert to fraction form
    172,176.30/258,284.07 = 45,821.73/x
  3. Step 3: Cross multiply
    172,176.30x = 258,284.07 × 45,821.73
  4. Step 4: Simplify right side
    172,176.30x = 11,835,022,918.84
  5. Step 5: Solve for x
    x = 11,835,022,918.84/172,176.30
  6. Step 6: Final answer
    x = 68,737.82

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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.