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Finding the Fourth Proportional to 170,659.43, 256,103.42 and 70,819.73

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Solution

The fourth proportional to 170,659.43, 256,103.42 and 70,819.73 is: 106,277.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,659.43 : 256,103.42 = 70,819.73 : x
  2. Step 2: Convert to fraction form
    170,659.43/256,103.42 = 70,819.73/x
  3. Step 3: Cross multiply
    170,659.43x = 256,103.42 × 70,819.73
  4. Step 4: Simplify right side
    170,659.43x = 18,137,173,421.86
  5. Step 5: Solve for x
    x = 18,137,173,421.86/170,659.43
  6. Step 6: Final answer
    x = 106,277.01

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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.