Home / 148,921.82-205,514.16-80,940.14

Finding the Fourth Proportional to 148,921.82, 205,514.16 and 80,940.14

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Solution

The fourth proportional to 148,921.82, 205,514.16 and 80,940.14 is: 111,698.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,921.82 : 205,514.16 = 80,940.14 : x
  2. Step 2: Convert to fraction form
    148,921.82/205,514.16 = 80,940.14/x
  3. Step 3: Cross multiply
    148,921.82x = 205,514.16 × 80,940.14
  4. Step 4: Simplify right side
    148,921.82x = 16,634,344,882.38
  5. Step 5: Solve for x
    x = 16,634,344,882.38/148,921.82
  6. Step 6: Final answer
    x = 111,698.51

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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.