Home / 198,858.13-274,424.26-109,434.13

Finding the Fourth Proportional to 198,858.13, 274,424.26 and 109,434.13

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Solution

The fourth proportional to 198,858.13, 274,424.26 and 109,434.13 is: 151,019.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,858.13 : 274,424.26 = 109,434.13 : x
  2. Step 2: Convert to fraction form
    198,858.13/274,424.26 = 109,434.13/x
  3. Step 3: Cross multiply
    198,858.13x = 274,424.26 × 109,434.13
  4. Step 4: Simplify right side
    198,858.13x = 30,031,380,143.99
  5. Step 5: Solve for x
    x = 30,031,380,143.99/198,858.13
  6. Step 6: Final answer
    x = 151,019.12

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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.