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Finding the Fourth Proportional to 140,845.72, 194,253.91 and 123,813.71

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Solution

The fourth proportional to 140,845.72, 194,253.91 and 123,813.71 is: 170,763.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,845.72 : 194,253.91 = 123,813.71 : x
  2. Step 2: Convert to fraction form
    140,845.72/194,253.91 = 123,813.71/x
  3. Step 3: Cross multiply
    140,845.72x = 194,253.91 × 123,813.71
  4. Step 4: Simplify right side
    140,845.72x = 24,051,297,279.11
  5. Step 5: Solve for x
    x = 24,051,297,279.11/140,845.72
  6. Step 6: Final answer
    x = 170,763.42

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.