Home / 198,857.69-274,423.11-108,213.63

Finding the Fourth Proportional to 198,857.69, 274,423.11 and 108,213.63

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Solution

The fourth proportional to 198,857.69, 274,423.11 and 108,213.63 is: 149,334.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,857.69 : 274,423.11 = 108,213.63 : x
  2. Step 2: Convert to fraction form
    198,857.69/274,423.11 = 108,213.63/x
  3. Step 3: Cross multiply
    198,857.69x = 274,423.11 × 108,213.63
  4. Step 4: Simplify right side
    198,857.69x = 29,696,320,888.99
  5. Step 5: Solve for x
    x = 29,696,320,888.99/198,857.69
  6. Step 6: Final answer
    x = 149,334.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.