Home / 172,217.13-258,278.85-108,942.27

Finding the Fourth Proportional to 172,217.13, 258,278.85 and 108,942.27

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Solution

The fourth proportional to 172,217.13, 258,278.85 and 108,942.27 is: 163,383.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,217.13 : 258,278.85 = 108,942.27 : x
  2. Step 2: Convert to fraction form
    172,217.13/258,278.85 = 108,942.27/x
  3. Step 3: Cross multiply
    172,217.13x = 258,278.85 × 108,942.27
  4. Step 4: Simplify right side
    172,217.13x = 28,137,484,211.99
  5. Step 5: Solve for x
    x = 28,137,484,211.99/172,217.13
  6. Step 6: Final answer
    x = 163,383.77

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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.