Home / 128,196.32-192,033.36-104,588

Finding the Fourth Proportional to 128,196.32, 192,033.36 and 104,588

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Solution

The fourth proportional to 128,196.32, 192,033.36 and 104,588 is: 156,668.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,196.32 : 192,033.36 = 104,588 : x
  2. Step 2: Convert to fraction form
    128,196.32/192,033.36 = 104,588/x
  3. Step 3: Cross multiply
    128,196.32x = 192,033.36 × 104,588
  4. Step 4: Simplify right side
    128,196.32x = 20,084,385,055.68
  5. Step 5: Solve for x
    x = 20,084,385,055.68/128,196.32
  6. Step 6: Final answer
    x = 156,668.97

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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.