Home / 127,131.36-190,706.16-33,636

Finding the Fourth Proportional to 127,131.36, 190,706.16 and 33,636

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Solution

The fourth proportional to 127,131.36, 190,706.16 and 33,636 is: 50,456.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,131.36 : 190,706.16 = 33,636 : x
  2. Step 2: Convert to fraction form
    127,131.36/190,706.16 = 33,636/x
  3. Step 3: Cross multiply
    127,131.36x = 190,706.16 × 33,636
  4. Step 4: Simplify right side
    127,131.36x = 6,414,592,397.76
  5. Step 5: Solve for x
    x = 6,414,592,397.76/127,131.36
  6. Step 6: Final answer
    x = 50,456.41

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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.