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Finding the Fourth Proportional to 103,636.55, 155,454.83 and 37,078.85

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Solution

The fourth proportional to 103,636.55, 155,454.83 and 37,078.85 is: 55,618.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,636.55 : 155,454.83 = 37,078.85 : x
  2. Step 2: Convert to fraction form
    103,636.55/155,454.83 = 37,078.85/x
  3. Step 3: Cross multiply
    103,636.55x = 155,454.83 × 37,078.85
  4. Step 4: Simplify right side
    103,636.55x = 5,764,086,323.35
  5. Step 5: Solve for x
    x = 5,764,086,323.35/103,636.55
  6. Step 6: Final answer
    x = 55,618.28

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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.