Home / 103,631.35-155,529.05-40,481.73

Finding the Fourth Proportional to 103,631.35, 155,529.05 and 40,481.73

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Solution

The fourth proportional to 103,631.35, 155,529.05 and 40,481.73 is: 60,754.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,631.35 : 155,529.05 = 40,481.73 : x
  2. Step 2: Convert to fraction form
    103,631.35/155,529.05 = 40,481.73/x
  3. Step 3: Cross multiply
    103,631.35x = 155,529.05 × 40,481.73
  4. Step 4: Simplify right side
    103,631.35x = 6,296,085,009.26
  5. Step 5: Solve for x
    x = 6,296,085,009.26/103,631.35
  6. Step 6: Final answer
    x = 60,754.64

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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.