Home / 103,626.67-155,439.99-68,558.14

Finding the Fourth Proportional to 103,626.67, 155,439.99 and 68,558.14

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Solution

The fourth proportional to 103,626.67, 155,439.99 and 68,558.14 is: 102,837.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,626.67 : 155,439.99 = 68,558.14 : x
  2. Step 2: Convert to fraction form
    103,626.67/155,439.99 = 68,558.14/x
  3. Step 3: Cross multiply
    103,626.67x = 155,439.99 × 68,558.14
  4. Step 4: Simplify right side
    103,626.67x = 10,656,676,596.02
  5. Step 5: Solve for x
    x = 10,656,676,596.02/103,626.67
  6. Step 6: Final answer
    x = 102,837.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.