Home / 103,629.94-155,448.24-28,750.84

Finding the Fourth Proportional to 103,629.94, 155,448.24 and 28,750.84

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Solution

The fourth proportional to 103,629.94, 155,448.24 and 28,750.84 is: 43,127.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,629.94 : 155,448.24 = 28,750.84 : x
  2. Step 2: Convert to fraction form
    103,629.94/155,448.24 = 28,750.84/x
  3. Step 3: Cross multiply
    103,629.94x = 155,448.24 × 28,750.84
  4. Step 4: Simplify right side
    103,629.94x = 4,469,267,476.52
  5. Step 5: Solve for x
    x = 4,469,267,476.52/103,629.94
  6. Step 6: Final answer
    x = 43,127.18

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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.