Home / 442,771.05-664,085.30-127,156.17

Finding the Fourth Proportional to 442,771.05, 664,085.30 and 127,156.17

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Solution

The fourth proportional to 442,771.05, 664,085.30 and 127,156.17 is: 190,713.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,771.05 : 664,085.30 = 127,156.17 : x
  2. Step 2: Convert to fraction form
    442,771.05/664,085.30 = 127,156.17/x
  3. Step 3: Cross multiply
    442,771.05x = 664,085.30 × 127,156.17
  4. Step 4: Simplify right side
    442,771.05x = 84,442,542,665.52
  5. Step 5: Solve for x
    x = 84,442,542,665.52/442,771.05
  6. Step 6: Final answer
    x = 190,713.78

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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.