Home / 127,695.97-191,478.33-68,581.36

Finding the Fourth Proportional to 127,695.97, 191,478.33 and 68,581.36

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Solution

The fourth proportional to 127,695.97, 191,478.33 and 68,581.36 is: 102,836.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,695.97 : 191,478.33 = 68,581.36 : x
  2. Step 2: Convert to fraction form
    127,695.97/191,478.33 = 68,581.36/x
  3. Step 3: Cross multiply
    127,695.97x = 191,478.33 × 68,581.36
  4. Step 4: Simplify right side
    127,695.97x = 13,131,844,281.93
  5. Step 5: Solve for x
    x = 13,131,844,281.93/127,695.97
  6. Step 6: Final answer
    x = 102,836.79

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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.