Home / 190,566.99-285,791.96-131,780.43

Finding the Fourth Proportional to 190,566.99, 285,791.96 and 131,780.43

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Solution

The fourth proportional to 190,566.99, 285,791.96 and 131,780.43 is: 197,630.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,566.99 : 285,791.96 = 131,780.43 : x
  2. Step 2: Convert to fraction form
    190,566.99/285,791.96 = 131,780.43/x
  3. Step 3: Cross multiply
    190,566.99x = 285,791.96 × 131,780.43
  4. Step 4: Simplify right side
    190,566.99x = 37,661,787,708.79
  5. Step 5: Solve for x
    x = 37,661,787,708.79/190,566.99
  6. Step 6: Final answer
    x = 197,630.18

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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.