Home / 128,348.28-192,555.27-53,443.62

Finding the Fourth Proportional to 128,348.28, 192,555.27 and 53,443.62

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Solution

The fourth proportional to 128,348.28, 192,555.27 and 53,443.62 is: 80,179.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,348.28 : 192,555.27 = 53,443.62 : x
  2. Step 2: Convert to fraction form
    128,348.28/192,555.27 = 53,443.62/x
  3. Step 3: Cross multiply
    128,348.28x = 192,555.27 × 53,443.62
  4. Step 4: Simplify right side
    128,348.28x = 10,290,850,678.88
  5. Step 5: Solve for x
    x = 10,290,850,678.88/128,348.28
  6. Step 6: Final answer
    x = 80,179.11

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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.