Home / 172,099.36-258,139.76-53,757.12

Finding the Fourth Proportional to 172,099.36, 258,139.76 and 53,757.12

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Solution

The fourth proportional to 172,099.36, 258,139.76 and 53,757.12 is: 80,632.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,099.36 : 258,139.76 = 53,757.12 : x
  2. Step 2: Convert to fraction form
    172,099.36/258,139.76 = 53,757.12/x
  3. Step 3: Cross multiply
    172,099.36x = 258,139.76 × 53,757.12
  4. Step 4: Simplify right side
    172,099.36x = 13,876,850,055.09
  5. Step 5: Solve for x
    x = 13,876,850,055.09/172,099.36
  6. Step 6: Final answer
    x = 80,632.78

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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.