Home / 172,105.24-258,057.60-66,801.18

Finding the Fourth Proportional to 172,105.24, 258,057.60 and 66,801.18

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Solution

The fourth proportional to 172,105.24, 258,057.60 and 66,801.18 is: 100,162.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,105.24 : 258,057.60 = 66,801.18 : x
  2. Step 2: Convert to fraction form
    172,105.24/258,057.60 = 66,801.18/x
  3. Step 3: Cross multiply
    172,105.24x = 258,057.60 × 66,801.18
  4. Step 4: Simplify right side
    172,105.24x = 17,238,552,187.97
  5. Step 5: Solve for x
    x = 17,238,552,187.97/172,105.24
  6. Step 6: Final answer
    x = 100,162.85

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1.5x scale

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.