Home / 190,578.40-285,809.04-131,791.84

Finding the Fourth Proportional to 190,578.40, 285,809.04 and 131,791.84

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Solution

The fourth proportional to 190,578.40, 285,809.04 and 131,791.84 is: 197,647.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,578.40 : 285,809.04 = 131,791.84 : x
  2. Step 2: Convert to fraction form
    190,578.40/285,809.04 = 131,791.84/x
  3. Step 3: Cross multiply
    190,578.40x = 285,809.04 × 131,791.84
  4. Step 4: Simplify right side
    190,578.40x = 37,667,299,270.23
  5. Step 5: Solve for x
    x = 37,667,299,270.23/190,578.40
  6. Step 6: Final answer
    x = 197,647.26

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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.