Home / 198,743.63-298,230.26-105,249.38

Finding the Fourth Proportional to 198,743.63, 298,230.26 and 105,249.38

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Solution

The fourth proportional to 198,743.63, 298,230.26 and 105,249.38 is: 157,934.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,743.63 : 298,230.26 = 105,249.38 : x
  2. Step 2: Convert to fraction form
    198,743.63/298,230.26 = 105,249.38/x
  3. Step 3: Cross multiply
    198,743.63x = 298,230.26 × 105,249.38
  4. Step 4: Simplify right side
    198,743.63x = 31,388,547,944.84
  5. Step 5: Solve for x
    x = 31,388,547,944.84/198,743.63
  6. Step 6: Final answer
    x = 157,934.87

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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.