Home / 103,467.12-155,259-102,676.56

Finding the Fourth Proportional to 103,467.12, 155,259 and 102,676.56

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Solution

The fourth proportional to 103,467.12, 155,259 and 102,676.56 is: 154,072.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,467.12 : 155,259 = 102,676.56 : x
  2. Step 2: Convert to fraction form
    103,467.12/155,259 = 102,676.56/x
  3. Step 3: Cross multiply
    103,467.12x = 155,259 × 102,676.56
  4. Step 4: Simplify right side
    103,467.12x = 15,941,460,029.04
  5. Step 5: Solve for x
    x = 15,941,460,029.04/103,467.12
  6. Step 6: Final answer
    x = 154,072.71

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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.