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Finding the Fourth Proportional to 103,622.72, 155,230.68 and 53,735.44

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Solution

The fourth proportional to 103,622.72, 155,230.68 and 53,735.44 is: 80,497.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,622.72 : 155,230.68 = 53,735.44 : x
  2. Step 2: Convert to fraction form
    103,622.72/155,230.68 = 53,735.44/x
  3. Step 3: Cross multiply
    103,622.72x = 155,230.68 × 53,735.44
  4. Step 4: Simplify right side
    103,622.72x = 8,341,388,891.30
  5. Step 5: Solve for x
    x = 8,341,388,891.30/103,622.72
  6. Step 6: Final answer
    x = 80,497.68

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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.