Home / 128,414.20-192,563.70-49,502.20

Finding the Fourth Proportional to 128,414.20, 192,563.70 and 49,502.20

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Solution

The fourth proportional to 128,414.20, 192,563.70 and 49,502.20 is: 74,231.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,414.20 : 192,563.70 = 49,502.20 : x
  2. Step 2: Convert to fraction form
    128,414.20/192,563.70 = 49,502.20/x
  3. Step 3: Cross multiply
    128,414.20x = 192,563.70 × 49,502.20
  4. Step 4: Simplify right side
    128,414.20x = 9,532,326,790.14
  5. Step 5: Solve for x
    x = 9,532,326,790.14/128,414.20
  6. Step 6: Final answer
    x = 74,231.10

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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.