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Finding the Fourth Proportional to 103,226.40, 154,839.60 and 33,112.80

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Solution

The fourth proportional to 103,226.40, 154,839.60 and 33,112.80 is: 49,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,226.40 : 154,839.60 = 33,112.80 : x
  2. Step 2: Convert to fraction form
    103,226.40/154,839.60 = 33,112.80/x
  3. Step 3: Cross multiply
    103,226.40x = 154,839.60 × 33,112.80
  4. Step 4: Simplify right side
    103,226.40x = 5,127,172,706.88
  5. Step 5: Solve for x
    x = 5,127,172,706.88/103,226.40
  6. Step 6: Final answer
    x = 49,669.20

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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.