Home / 190,684.92-263,151.10-105,809.88

Finding the Fourth Proportional to 190,684.92, 263,151.10 and 105,809.88

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Solution

The fourth proportional to 190,684.92, 263,151.10 and 105,809.88 is: 146,020.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,684.92 : 263,151.10 = 105,809.88 : x
  2. Step 2: Convert to fraction form
    190,684.92/263,151.10 = 105,809.88/x
  3. Step 3: Cross multiply
    190,684.92x = 263,151.10 × 105,809.88
  4. Step 4: Simplify right side
    190,684.92x = 27,843,986,312.87
  5. Step 5: Solve for x
    x = 27,843,986,312.87/190,684.92
  6. Step 6: Final answer
    x = 146,020.91

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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.