Home / 195,344.76-269,543.82-128,359.80

Finding the Fourth Proportional to 195,344.76, 269,543.82 and 128,359.80

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Solution

The fourth proportional to 195,344.76, 269,543.82 and 128,359.80 is: 177,115.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,344.76 : 269,543.82 = 128,359.80 : x
  2. Step 2: Convert to fraction form
    195,344.76/269,543.82 = 128,359.80/x
  3. Step 3: Cross multiply
    195,344.76x = 269,543.82 × 128,359.80
  4. Step 4: Simplify right side
    195,344.76x = 34,598,590,826.44
  5. Step 5: Solve for x
    x = 34,598,590,826.44/195,344.76
  6. Step 6: Final answer
    x = 177,115.53

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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.