Home / 491,128.34-736,619.52-136,105.34

Finding the Fourth Proportional to 491,128.34, 736,619.52 and 136,105.34

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Solution

The fourth proportional to 491,128.34, 736,619.52 and 136,105.34 is: 204,137.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,128.34 : 736,619.52 = 136,105.34 : x
  2. Step 2: Convert to fraction form
    491,128.34/736,619.52 = 136,105.34/x
  3. Step 3: Cross multiply
    491,128.34x = 736,619.52 × 136,105.34
  4. Step 4: Simplify right side
    491,128.34x = 100,257,850,220.24
  5. Step 5: Solve for x
    x = 100,257,850,220.24/491,128.34
  6. Step 6: Final answer
    x = 204,137.78

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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.