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Finding the Fourth Proportional to 140,680, 211,020 and 42,184

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Solution

The fourth proportional to 140,680, 211,020 and 42,184 is: 63,276

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,680 : 211,020 = 42,184 : x
  2. Step 2: Convert to fraction form
    140,680/211,020 = 42,184/x
  3. Step 3: Cross multiply
    140,680x = 211,020 × 42,184
  4. Step 4: Simplify right side
    140,680x = 8,901,667,680
  5. Step 5: Solve for x
    x = 8,901,667,680/140,680
  6. Step 6: Final answer
    x = 63,276

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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.