Home / 353,156.35-530,067.43-128,733.70

Finding the Fourth Proportional to 353,156.35, 530,067.43 and 128,733.70

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Solution

The fourth proportional to 353,156.35, 530,067.43 and 128,733.70 is: 193,221.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,156.35 : 530,067.43 = 128,733.70 : x
  2. Step 2: Convert to fraction form
    353,156.35/530,067.43 = 128,733.70/x
  3. Step 3: Cross multiply
    353,156.35x = 530,067.43 × 128,733.70
  4. Step 4: Simplify right side
    353,156.35x = 68,237,541,513.39
  5. Step 5: Solve for x
    x = 68,237,541,513.39/353,156.35
  6. Step 6: Final answer
    x = 193,221.90

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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.