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Finding the Fourth Proportional to 103,627.53, 155,441.28 and 28,747.68

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Solution

The fourth proportional to 103,627.53, 155,441.28 and 28,747.68 is: 43,121.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,627.53 : 155,441.28 = 28,747.68 : x
  2. Step 2: Convert to fraction form
    103,627.53/155,441.28 = 28,747.68/x
  3. Step 3: Cross multiply
    103,627.53x = 155,441.28 × 28,747.68
  4. Step 4: Simplify right side
    103,627.53x = 4,468,576,176.23
  5. Step 5: Solve for x
    x = 4,468,576,176.23/103,627.53
  6. Step 6: Final answer
    x = 43,121.52

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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.