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Finding the Fourth Proportional to 66,773.60, 100,160.19 and 16,857.68

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Solution

The fourth proportional to 66,773.60, 100,160.19 and 16,857.68 is: 25,286.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,773.60 : 100,160.19 = 16,857.68 : x
  2. Step 2: Convert to fraction form
    66,773.60/100,160.19 = 16,857.68/x
  3. Step 3: Cross multiply
    66,773.60x = 100,160.19 × 16,857.68
  4. Step 4: Simplify right side
    66,773.60x = 1,688,468,431.76
  5. Step 5: Solve for x
    x = 1,688,468,431.76/66,773.60
  6. Step 6: Final answer
    x = 25,286.47

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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.