Home / 190,338.93-285,196.92-115,231.43

Finding the Fourth Proportional to 190,338.93, 285,196.92 and 115,231.43

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Solution

The fourth proportional to 190,338.93, 285,196.92 and 115,231.43 is: 172,658.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,338.93 : 285,196.92 = 115,231.43 : x
  2. Step 2: Convert to fraction form
    190,338.93/285,196.92 = 115,231.43/x
  3. Step 3: Cross multiply
    190,338.93x = 285,196.92 × 115,231.43
  4. Step 4: Simplify right side
    190,338.93x = 32,863,648,923.20
  5. Step 5: Solve for x
    x = 32,863,648,923.20/190,338.93
  6. Step 6: Final answer
    x = 172,658.58

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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.