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Finding the Fourth Proportional to 103,841.57, 155,760.12 and 28,959.73

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Solution

The fourth proportional to 103,841.57, 155,760.12 and 28,959.73 is: 43,438.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,841.57 : 155,760.12 = 28,959.73 : x
  2. Step 2: Convert to fraction form
    103,841.57/155,760.12 = 28,959.73/x
  3. Step 3: Cross multiply
    103,841.57x = 155,760.12 × 28,959.73
  4. Step 4: Simplify right side
    103,841.57x = 4,510,770,630.57
  5. Step 5: Solve for x
    x = 4,510,770,630.57/103,841.57
  6. Step 6: Final answer
    x = 43,438.97

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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.