Home / 197,909.78-296,857.37-85,618.26

Finding the Fourth Proportional to 197,909.78, 296,857.37 and 85,618.26

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Solution

The fourth proportional to 197,909.78, 296,857.37 and 85,618.26 is: 128,424.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,909.78 : 296,857.37 = 85,618.26 : x
  2. Step 2: Convert to fraction form
    197,909.78/296,857.37 = 85,618.26/x
  3. Step 3: Cross multiply
    197,909.78x = 296,857.37 × 85,618.26
  4. Step 4: Simplify right side
    197,909.78x = 25,416,411,701.62
  5. Step 5: Solve for x
    x = 25,416,411,701.62/197,909.78
  6. Step 6: Final answer
    x = 128,424.24

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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.