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Finding the Fourth Proportional to 100,379.78, 150,562.62 and 47,083.44

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Solution

The fourth proportional to 100,379.78, 150,562.62 and 47,083.44 is: 70,621.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,379.78 : 150,562.62 = 47,083.44 : x
  2. Step 2: Convert to fraction form
    100,379.78/150,562.62 = 47,083.44/x
  3. Step 3: Cross multiply
    100,379.78x = 150,562.62 × 47,083.44
  4. Step 4: Simplify right side
    100,379.78x = 7,089,006,583.41
  5. Step 5: Solve for x
    x = 7,089,006,583.41/100,379.78
  6. Step 6: Final answer
    x = 70,621.86

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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.