Home / 103,980.36-155,991.60-33,840.84

Finding the Fourth Proportional to 103,980.36, 155,991.60 and 33,840.84

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Solution

The fourth proportional to 103,980.36, 155,991.60 and 33,840.84 is: 50,768.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,980.36 : 155,991.60 = 33,840.84 : x
  2. Step 2: Convert to fraction form
    103,980.36/155,991.60 = 33,840.84/x
  3. Step 3: Cross multiply
    103,980.36x = 155,991.60 × 33,840.84
  4. Step 4: Simplify right side
    103,980.36x = 5,278,886,776.94
  5. Step 5: Solve for x
    x = 5,278,886,776.94/103,980.36
  6. Step 6: Final answer
    x = 50,768.11

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1.5x scale

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.