Home / 172,144.35-258,216-45,784.49

Finding the Fourth Proportional to 172,144.35, 258,216 and 45,784.49

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Solution

The fourth proportional to 172,144.35, 258,216 and 45,784.49 is: 68,676.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,144.35 : 258,216 = 45,784.49 : x
  2. Step 2: Convert to fraction form
    172,144.35/258,216 = 45,784.49/x
  3. Step 3: Cross multiply
    172,144.35x = 258,216 × 45,784.49
  4. Step 4: Simplify right side
    172,144.35x = 11,822,286,578.76
  5. Step 5: Solve for x
    x = 11,822,286,578.76/172,144.35
  6. Step 6: Final answer
    x = 68,676.59

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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.