Home / 190,781.78-263,265.67-105,892.16

Finding the Fourth Proportional to 190,781.78, 263,265.67 and 105,892.16

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Solution

The fourth proportional to 190,781.78, 263,265.67 and 105,892.16 is: 146,123.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,781.78 : 263,265.67 = 105,892.16 : x
  2. Step 2: Convert to fraction form
    190,781.78/263,265.67 = 105,892.16/x
  3. Step 3: Cross multiply
    190,781.78x = 263,265.67 × 105,892.16
  4. Step 4: Simplify right side
    190,781.78x = 27,877,770,450.15
  5. Step 5: Solve for x
    x = 27,877,770,450.15/190,781.78
  6. Step 6: Final answer
    x = 146,123.86

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1.5x scale

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.