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Finding the Fourth Proportional to 140,690, 211,035 and 42,194

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Solution

The fourth proportional to 140,690, 211,035 and 42,194 is: 63,291

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,690 : 211,035 = 42,194 : x
  2. Step 2: Convert to fraction form
    140,690/211,035 = 42,194/x
  3. Step 3: Cross multiply
    140,690x = 211,035 × 42,194
  4. Step 4: Simplify right side
    140,690x = 8,904,410,790
  5. Step 5: Solve for x
    x = 8,904,410,790/140,690
  6. Step 6: Final answer
    x = 63,291

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.