Home / 127,906.80-191,915.46-68,673.30

Finding the Fourth Proportional to 127,906.80, 191,915.46 and 68,673.30

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Solution

The fourth proportional to 127,906.80, 191,915.46 and 68,673.30 is: 103,039.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,906.80 : 191,915.46 = 68,673.30 : x
  2. Step 2: Convert to fraction form
    127,906.80/191,915.46 = 68,673.30/x
  3. Step 3: Cross multiply
    127,906.80x = 191,915.46 × 68,673.30
  4. Step 4: Simplify right side
    127,906.80x = 13,179,467,959.22
  5. Step 5: Solve for x
    x = 13,179,467,959.22/127,906.80
  6. Step 6: Final answer
    x = 103,039.62

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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.