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Finding the Fourth Proportional to 103,453.70, 155,180.55 and 102,797.60

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Solution

The fourth proportional to 103,453.70, 155,180.55 and 102,797.60 is: 154,196.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,453.70 : 155,180.55 = 102,797.60 : x
  2. Step 2: Convert to fraction form
    103,453.70/155,180.55 = 102,797.60/x
  3. Step 3: Cross multiply
    103,453.70x = 155,180.55 × 102,797.60
  4. Step 4: Simplify right side
    103,453.70x = 15,952,188,106.68
  5. Step 5: Solve for x
    x = 15,952,188,106.68/103,453.70
  6. Step 6: Final answer
    x = 154,196.40

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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.