Home / 171,519.31-256,296.11-130,768.66

Finding the Fourth Proportional to 171,519.31, 256,296.11 and 130,768.66

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Solution

The fourth proportional to 171,519.31, 256,296.11 and 130,768.66 is: 195,403.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,519.31 : 256,296.11 = 130,768.66 : x
  2. Step 2: Convert to fraction form
    171,519.31/256,296.11 = 130,768.66/x
  3. Step 3: Cross multiply
    171,519.31x = 256,296.11 × 130,768.66
  4. Step 4: Simplify right side
    171,519.31x = 33,515,498,554.09
  5. Step 5: Solve for x
    x = 33,515,498,554.09/171,519.31
  6. Step 6: Final answer
    x = 195,403.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.