Home / 126,756.62-190,321.84-70,706.24

Finding the Fourth Proportional to 126,756.62, 190,321.84 and 70,706.24

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Solution

The fourth proportional to 126,756.62, 190,321.84 and 70,706.24 is: 106,163.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,756.62 : 190,321.84 = 70,706.24 : x
  2. Step 2: Convert to fraction form
    126,756.62/190,321.84 = 70,706.24/x
  3. Step 3: Cross multiply
    126,756.62x = 190,321.84 × 70,706.24
  4. Step 4: Simplify right side
    126,756.62x = 13,456,941,696.28
  5. Step 5: Solve for x
    x = 13,456,941,696.28/126,756.62
  6. Step 6: Final answer
    x = 106,163.62

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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.