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Finding the Fourth Proportional to 103,857.40, 155,786.10 and 33,743.80

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Solution

The fourth proportional to 103,857.40, 155,786.10 and 33,743.80 is: 50,615.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,857.40 : 155,786.10 = 33,743.80 : x
  2. Step 2: Convert to fraction form
    103,857.40/155,786.10 = 33,743.80/x
  3. Step 3: Cross multiply
    103,857.40x = 155,786.10 × 33,743.80
  4. Step 4: Simplify right side
    103,857.40x = 5,256,815,001.18
  5. Step 5: Solve for x
    x = 5,256,815,001.18/103,857.40
  6. Step 6: Final answer
    x = 50,615.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.