Home / 190,634.25-285,765.42-90,767.61

Finding the Fourth Proportional to 190,634.25, 285,765.42 and 90,767.61

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Solution

The fourth proportional to 190,634.25, 285,765.42 and 90,767.61 is: 136,062.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,634.25 : 285,765.42 = 90,767.61 : x
  2. Step 2: Convert to fraction form
    190,634.25/285,765.42 = 90,767.61/x
  3. Step 3: Cross multiply
    190,634.25x = 285,765.42 × 90,767.61
  4. Step 4: Simplify right side
    190,634.25x = 25,938,244,194.05
  5. Step 5: Solve for x
    x = 25,938,244,194.05/190,634.25
  6. Step 6: Final answer
    x = 136,062.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.