Home / 231,963.06-320,092.84-128,596.23

Finding the Fourth Proportional to 231,963.06, 320,092.84 and 128,596.23

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Solution

The fourth proportional to 231,963.06, 320,092.84 and 128,596.23 is: 177,453.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,963.06 : 320,092.84 = 128,596.23 : x
  2. Step 2: Convert to fraction form
    231,963.06/320,092.84 = 128,596.23/x
  3. Step 3: Cross multiply
    231,963.06x = 320,092.84 × 128,596.23
  4. Step 4: Simplify right side
    231,963.06x = 41,162,732,473.99
  5. Step 5: Solve for x
    x = 41,162,732,473.99/231,963.06
  6. Step 6: Final answer
    x = 177,453.83

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1.5x scale

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.