Home / 199,290.87-298,935.90-80,934.48

Finding the Fourth Proportional to 199,290.87, 298,935.90 and 80,934.48

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Solution

The fourth proportional to 199,290.87, 298,935.90 and 80,934.48 is: 121,401.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,290.87 : 298,935.90 = 80,934.48 : x
  2. Step 2: Convert to fraction form
    199,290.87/298,935.90 = 80,934.48/x
  3. Step 3: Cross multiply
    199,290.87x = 298,935.90 × 80,934.48
  4. Step 4: Simplify right side
    199,290.87x = 24,194,221,619.83
  5. Step 5: Solve for x
    x = 24,194,221,619.83/199,290.87
  6. Step 6: Final answer
    x = 121,401.56

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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.