Home / 126,887.45-190,605.83-82,491.35

Finding the Fourth Proportional to 126,887.45, 190,605.83 and 82,491.35

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Solution

The fourth proportional to 126,887.45, 190,605.83 and 82,491.35 is: 123,915.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,887.45 : 190,605.83 = 82,491.35 : x
  2. Step 2: Convert to fraction form
    126,887.45/190,605.83 = 82,491.35/x
  3. Step 3: Cross multiply
    126,887.45x = 190,605.83 × 82,491.35
  4. Step 4: Simplify right side
    126,887.45x = 15,723,330,869.08
  5. Step 5: Solve for x
    x = 15,723,330,869.08/126,887.45
  6. Step 6: Final answer
    x = 123,915.58

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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.