Home / 170,727.44-256,087.80-77,167.76

Finding the Fourth Proportional to 170,727.44, 256,087.80 and 77,167.76

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Solution

The fourth proportional to 170,727.44, 256,087.80 and 77,167.76 is: 115,750.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,727.44 : 256,087.80 = 77,167.76 : x
  2. Step 2: Convert to fraction form
    170,727.44/256,087.80 = 77,167.76/x
  3. Step 3: Cross multiply
    170,727.44x = 256,087.80 × 77,167.76
  4. Step 4: Simplify right side
    170,727.44x = 19,761,721,889.33
  5. Step 5: Solve for x
    x = 19,761,721,889.33/170,727.44
  6. Step 6: Final answer
    x = 115,750.12

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1.5x scale

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.