Home / 123,727.44-170,704.56-72,723.84

Finding the Fourth Proportional to 123,727.44, 170,704.56 and 72,723.84

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Solution

The fourth proportional to 123,727.44, 170,704.56 and 72,723.84 is: 100,335.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,727.44 : 170,704.56 = 72,723.84 : x
  2. Step 2: Convert to fraction form
    123,727.44/170,704.56 = 72,723.84/x
  3. Step 3: Cross multiply
    123,727.44x = 170,704.56 × 72,723.84
  4. Step 4: Simplify right side
    123,727.44x = 12,414,291,108.71
  5. Step 5: Solve for x
    x = 12,414,291,108.71/123,727.44
  6. Step 6: Final answer
    x = 100,335.80

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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.