Home / 103,727.10-155,201.85-68,735.10

Finding the Fourth Proportional to 103,727.10, 155,201.85 and 68,735.10

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Solution

The fourth proportional to 103,727.10, 155,201.85 and 68,735.10 is: 102,845.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,727.10 : 155,201.85 = 68,735.10 : x
  2. Step 2: Convert to fraction form
    103,727.10/155,201.85 = 68,735.10/x
  3. Step 3: Cross multiply
    103,727.10x = 155,201.85 × 68,735.10
  4. Step 4: Simplify right side
    103,727.10x = 10,667,814,679.94
  5. Step 5: Solve for x
    x = 10,667,814,679.94/103,727.10
  6. Step 6: Final answer
    x = 102,845.01

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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.