Home / 190,769.72-263,214.78-105,865.52

Finding the Fourth Proportional to 190,769.72, 263,214.78 and 105,865.52

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Solution

The fourth proportional to 190,769.72, 263,214.78 and 105,865.52 is: 146,068.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,769.72 : 263,214.78 = 105,865.52 : x
  2. Step 2: Convert to fraction form
    190,769.72/263,214.78 = 105,865.52/x
  3. Step 3: Cross multiply
    190,769.72x = 263,214.78 × 105,865.52
  4. Step 4: Simplify right side
    190,769.72x = 27,865,369,556.39
  5. Step 5: Solve for x
    x = 27,865,369,556.39/190,769.72
  6. Step 6: Final answer
    x = 146,068.09

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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.