Home / 103,631.60-155,529.42-40,481.98

Finding the Fourth Proportional to 103,631.60, 155,529.42 and 40,481.98

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Solution

The fourth proportional to 103,631.60, 155,529.42 and 40,481.98 is: 60,755.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,631.60 : 155,529.42 = 40,481.98 : x
  2. Step 2: Convert to fraction form
    103,631.60/155,529.42 = 40,481.98/x
  3. Step 3: Cross multiply
    103,631.60x = 155,529.42 × 40,481.98
  4. Step 4: Simplify right side
    103,631.60x = 6,296,138,869.85
  5. Step 5: Solve for x
    x = 6,296,138,869.85/103,631.60
  6. Step 6: Final answer
    x = 60,755.01

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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.