Home / 127,917.40-191,859.30-39,179.80

Finding the Fourth Proportional to 127,917.40, 191,859.30 and 39,179.80

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Solution

The fourth proportional to 127,917.40, 191,859.30 and 39,179.80 is: 58,764.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,917.40 : 191,859.30 = 39,179.80 : x
  2. Step 2: Convert to fraction form
    127,917.40/191,859.30 = 39,179.80/x
  3. Step 3: Cross multiply
    127,917.40x = 191,859.30 × 39,179.80
  4. Step 4: Simplify right side
    127,917.40x = 7,517,009,002.14
  5. Step 5: Solve for x
    x = 7,517,009,002.14/127,917.40
  6. Step 6: Final answer
    x = 58,764.55

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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.