Home / 103,896.94-155,806.53-81,968.62

Finding the Fourth Proportional to 103,896.94, 155,806.53 and 81,968.62

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Solution

The fourth proportional to 103,896.94, 155,806.53 and 81,968.62 is: 122,922.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,896.94 : 155,806.53 = 81,968.62 : x
  2. Step 2: Convert to fraction form
    103,896.94/155,806.53 = 81,968.62/x
  3. Step 3: Cross multiply
    103,896.94x = 155,806.53 × 81,968.62
  4. Step 4: Simplify right side
    103,896.94x = 12,771,246,251.09
  5. Step 5: Solve for x
    x = 12,771,246,251.09/103,896.94
  6. Step 6: Final answer
    x = 122,922.26

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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.