Home / 103,511.53-155,208.97-36,012.61

Finding the Fourth Proportional to 103,511.53, 155,208.97 and 36,012.61

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Solution

The fourth proportional to 103,511.53, 155,208.97 and 36,012.61 is: 53,998.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,511.53 : 155,208.97 = 36,012.61 : x
  2. Step 2: Convert to fraction form
    103,511.53/155,208.97 = 36,012.61/x
  3. Step 3: Cross multiply
    103,511.53x = 155,208.97 × 36,012.61
  4. Step 4: Simplify right side
    103,511.53x = 5,589,480,105.11
  5. Step 5: Solve for x
    x = 5,589,480,105.11/103,511.53
  6. Step 6: Final answer
    x = 53,998.62

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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.