Home / 231,621.87-319,592.73-145,530.97

Finding the Fourth Proportional to 231,621.87, 319,592.73 and 145,530.97

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Solution

The fourth proportional to 231,621.87, 319,592.73 and 145,530.97 is: 200,804.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,621.87 : 319,592.73 = 145,530.97 : x
  2. Step 2: Convert to fraction form
    231,621.87/319,592.73 = 145,530.97/x
  3. Step 3: Cross multiply
    231,621.87x = 319,592.73 × 145,530.97
  4. Step 4: Simplify right side
    231,621.87x = 46,510,640,001.85
  5. Step 5: Solve for x
    x = 46,510,640,001.85/231,621.87
  6. Step 6: Final answer
    x = 200,804.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.