Home / 190,860-263,397.74-105,982.53

Finding the Fourth Proportional to 190,860, 263,397.74 and 105,982.53

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Solution

The fourth proportional to 190,860, 263,397.74 and 105,982.53 is: 146,261.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,860 : 263,397.74 = 105,982.53 : x
  2. Step 2: Convert to fraction form
    190,860/263,397.74 = 105,982.53/x
  3. Step 3: Cross multiply
    190,860x = 263,397.74 × 105,982.53
  4. Step 4: Simplify right side
    190,860x = 27,915,558,351.57
  5. Step 5: Solve for x
    x = 27,915,558,351.57/190,860
  6. Step 6: Final answer
    x = 146,261.96

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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.