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Finding the Fourth Proportional to 113,876.20, 170,814.30 and 80,633.80

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Solution

The fourth proportional to 113,876.20, 170,814.30 and 80,633.80 is: 120,950.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,876.20 : 170,814.30 = 80,633.80 : x
  2. Step 2: Convert to fraction form
    113,876.20/170,814.30 = 80,633.80/x
  3. Step 3: Cross multiply
    113,876.20x = 170,814.30 × 80,633.80
  4. Step 4: Simplify right side
    113,876.20x = 13,773,406,103.34
  5. Step 5: Solve for x
    x = 13,773,406,103.34/113,876.20
  6. Step 6: Final answer
    x = 120,950.70

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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.