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Finding the Fourth Proportional to 102,435, 141,399.18 and 68,920.44

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Solution

The fourth proportional to 102,435, 141,399.18 and 68,920.44 is: 95,136.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,435 : 141,399.18 = 68,920.44 : x
  2. Step 2: Convert to fraction form
    102,435/141,399.18 = 68,920.44/x
  3. Step 3: Cross multiply
    102,435x = 141,399.18 × 68,920.44
  4. Step 4: Simplify right side
    102,435x = 9,745,293,701.24
  5. Step 5: Solve for x
    x = 9,745,293,701.24/102,435
  6. Step 6: Final answer
    x = 95,136.37

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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.