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Finding the Fourth Proportional to 141,172, 211,758 and 42,676

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Solution

The fourth proportional to 141,172, 211,758 and 42,676 is: 64,014

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,172 : 211,758 = 42,676 : x
  2. Step 2: Convert to fraction form
    141,172/211,758 = 42,676/x
  3. Step 3: Cross multiply
    141,172x = 211,758 × 42,676
  4. Step 4: Simplify right side
    141,172x = 9,036,984,408
  5. Step 5: Solve for x
    x = 9,036,984,408/141,172
  6. Step 6: Final answer
    x = 64,014

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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.