Home / 191,239.97-263,917.04-105,194.61

Finding the Fourth Proportional to 191,239.97, 263,917.04 and 105,194.61

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Solution

The fourth proportional to 191,239.97, 263,917.04 and 105,194.61 is: 145,171.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,239.97 : 263,917.04 = 105,194.61 : x
  2. Step 2: Convert to fraction form
    191,239.97/263,917.04 = 105,194.61/x
  3. Step 3: Cross multiply
    191,239.97x = 263,917.04 × 105,194.61
  4. Step 4: Simplify right side
    191,239.97x = 27,762,649,569.18
  5. Step 5: Solve for x
    x = 27,762,649,569.18/191,239.97
  6. Step 6: Final answer
    x = 145,171.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.