Home / 103,290.39-154,942.61-33,165.45

Finding the Fourth Proportional to 103,290.39, 154,942.61 and 33,165.45

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Solution

The fourth proportional to 103,290.39, 154,942.61 and 33,165.45 is: 49,750.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,290.39 : 154,942.61 = 33,165.45 : x
  2. Step 2: Convert to fraction form
    103,290.39/154,942.61 = 33,165.45/x
  3. Step 3: Cross multiply
    103,290.39x = 154,942.61 × 33,165.45
  4. Step 4: Simplify right side
    103,290.39x = 5,138,741,219.00
  5. Step 5: Solve for x
    x = 5,138,741,219.00/103,290.39
  6. Step 6: Final answer
    x = 49,750.43

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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.