Home / 103,991.29-155,986.94-33,870.60

Finding the Fourth Proportional to 103,991.29, 155,986.94 and 33,870.60

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Solution

The fourth proportional to 103,991.29, 155,986.94 and 33,870.60 is: 50,805.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,991.29 : 155,986.94 = 33,870.60 : x
  2. Step 2: Convert to fraction form
    103,991.29/155,986.94 = 33,870.60/x
  3. Step 3: Cross multiply
    103,991.29x = 155,986.94 × 33,870.60
  4. Step 4: Simplify right side
    103,991.29x = 5,283,371,334.64
  5. Step 5: Solve for x
    x = 5,283,371,334.64/103,991.29
  6. Step 6: Final answer
    x = 50,805.90

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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.