Home / 103,659.06-155,471.25-28,786.77

Finding the Fourth Proportional to 103,659.06, 155,471.25 and 28,786.77

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Solution

The fourth proportional to 103,659.06, 155,471.25 and 28,786.77 is: 43,175.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,659.06 : 155,471.25 = 28,786.77 : x
  2. Step 2: Convert to fraction form
    103,659.06/155,471.25 = 28,786.77/x
  3. Step 3: Cross multiply
    103,659.06x = 155,471.25 × 28,786.77
  4. Step 4: Simplify right side
    103,659.06x = 4,475,515,607.97
  5. Step 5: Solve for x
    x = 4,475,515,607.97/103,659.06
  6. Step 6: Final answer
    x = 43,175.34

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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.