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Finding the Fourth Proportional to 103,235.57, 154,805.83 and 40,863.41

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Solution

The fourth proportional to 103,235.57, 154,805.83 and 40,863.41 is: 61,276.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,235.57 : 154,805.83 = 40,863.41 : x
  2. Step 2: Convert to fraction form
    103,235.57/154,805.83 = 40,863.41/x
  3. Step 3: Cross multiply
    103,235.57x = 154,805.83 × 40,863.41
  4. Step 4: Simplify right side
    103,235.57x = 6,325,894,101.68
  5. Step 5: Solve for x
    x = 6,325,894,101.68/103,235.57
  6. Step 6: Final answer
    x = 61,276.30

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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.