Home / 103,914.06-155,589.54-53,889.25

Finding the Fourth Proportional to 103,914.06, 155,589.54 and 53,889.25

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Solution

The fourth proportional to 103,914.06, 155,589.54 and 53,889.25 is: 80,687.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,914.06 : 155,589.54 = 53,889.25 : x
  2. Step 2: Convert to fraction form
    103,914.06/155,589.54 = 53,889.25/x
  3. Step 3: Cross multiply
    103,914.06x = 155,589.54 × 53,889.25
  4. Step 4: Simplify right side
    103,914.06x = 8,384,603,618.45
  5. Step 5: Solve for x
    x = 8,384,603,618.45/103,914.06
  6. Step 6: Final answer
    x = 80,687.86

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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.