Home / 123,857.24-170,923.86-67,268.61

Finding the Fourth Proportional to 123,857.24, 170,923.86 and 67,268.61

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Solution

The fourth proportional to 123,857.24, 170,923.86 and 67,268.61 is: 92,831.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,857.24 : 170,923.86 = 67,268.61 : x
  2. Step 2: Convert to fraction form
    123,857.24/170,923.86 = 67,268.61/x
  3. Step 3: Cross multiply
    123,857.24x = 170,923.86 × 67,268.61
  4. Step 4: Simplify right side
    123,857.24x = 11,497,810,478.03
  5. Step 5: Solve for x
    x = 11,497,810,478.03/123,857.24
  6. Step 6: Final answer
    x = 92,831.16

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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.