Home / 103,620.35-155,507.33-68,548.35

Finding the Fourth Proportional to 103,620.35, 155,507.33 and 68,548.35

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Solution

The fourth proportional to 103,620.35, 155,507.33 and 68,548.35 is: 102,873.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,620.35 : 155,507.33 = 68,548.35 : x
  2. Step 2: Convert to fraction form
    103,620.35/155,507.33 = 68,548.35/x
  3. Step 3: Cross multiply
    103,620.35x = 155,507.33 × 68,548.35
  4. Step 4: Simplify right side
    103,620.35x = 10,659,770,884.41
  5. Step 5: Solve for x
    x = 10,659,770,884.41/103,620.35
  6. Step 6: Final answer
    x = 102,873.33

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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.