Home / 190,566.62-285,791.40-131,780.06

Finding the Fourth Proportional to 190,566.62, 285,791.40 and 131,780.06

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Solution

The fourth proportional to 190,566.62, 285,791.40 and 131,780.06 is: 197,629.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,566.62 : 285,791.40 = 131,780.06 : x
  2. Step 2: Convert to fraction form
    190,566.62/285,791.40 = 131,780.06/x
  3. Step 3: Cross multiply
    190,566.62x = 285,791.40 × 131,780.06
  4. Step 4: Simplify right side
    190,566.62x = 37,661,606,410.53
  5. Step 5: Solve for x
    x = 37,661,606,410.53/190,566.62
  6. Step 6: Final answer
    x = 197,629.61

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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.