Home / 199,142.38-298,838.14-80,813.73

Finding the Fourth Proportional to 199,142.38, 298,838.14 and 80,813.73

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Solution

The fourth proportional to 199,142.38, 298,838.14 and 80,813.73 is: 121,271.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,142.38 : 298,838.14 = 80,813.73 : x
  2. Step 2: Convert to fraction form
    199,142.38/298,838.14 = 80,813.73/x
  3. Step 3: Cross multiply
    199,142.38x = 298,838.14 × 80,813.73
  4. Step 4: Simplify right side
    199,142.38x = 24,150,223,265.47
  5. Step 5: Solve for x
    x = 24,150,223,265.47/199,142.38
  6. Step 6: Final answer
    x = 121,271.14

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1.5x scale

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.