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Finding the Fourth Proportional to 103,562.37, 155,370.29 and 47,375.64

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Solution

The fourth proportional to 103,562.37, 155,370.29 and 47,375.64 is: 71,075.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,562.37 : 155,370.29 = 47,375.64 : x
  2. Step 2: Convert to fraction form
    103,562.37/155,370.29 = 47,375.64/x
  3. Step 3: Cross multiply
    103,562.37x = 155,370.29 × 47,375.64
  4. Step 4: Simplify right side
    103,562.37x = 7,360,766,688.86
  5. Step 5: Solve for x
    x = 7,360,766,688.86/103,562.37
  6. Step 6: Final answer
    x = 71,075.69

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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.