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Finding the Fourth Proportional to 144,626.64, 217,093.32 and 128,094

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Solution

The fourth proportional to 144,626.64, 217,093.32 and 128,094 is: 192,276.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,626.64 : 217,093.32 = 128,094 : x
  2. Step 2: Convert to fraction form
    144,626.64/217,093.32 = 128,094/x
  3. Step 3: Cross multiply
    144,626.64x = 217,093.32 × 128,094
  4. Step 4: Simplify right side
    144,626.64x = 27,808,351,732.08
  5. Step 5: Solve for x
    x = 27,808,351,732.08/144,626.64
  6. Step 6: Final answer
    x = 192,276.83

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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.