Home / 199,010.32-298,514.79-80,681.38

Finding the Fourth Proportional to 199,010.32, 298,514.79 and 80,681.38

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Solution

The fourth proportional to 199,010.32, 298,514.79 and 80,681.38 is: 121,021.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,010.32 : 298,514.79 = 80,681.38 : x
  2. Step 2: Convert to fraction form
    199,010.32/298,514.79 = 80,681.38/x
  3. Step 3: Cross multiply
    199,010.32x = 298,514.79 × 80,681.38
  4. Step 4: Simplify right side
    199,010.32x = 24,084,585,207.61
  5. Step 5: Solve for x
    x = 24,084,585,207.61/199,010.32
  6. Step 6: Final answer
    x = 121,021.79

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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.