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Finding the Fourth Proportional to 172,696.96, 259,064 and 54,371.84

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Solution

The fourth proportional to 172,696.96, 259,064 and 54,371.84 is: 81,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,696.96 : 259,064 = 54,371.84 : x
  2. Step 2: Convert to fraction form
    172,696.96/259,064 = 54,371.84/x
  3. Step 3: Cross multiply
    172,696.96x = 259,064 × 54,371.84
  4. Step 4: Simplify right side
    172,696.96x = 14,085,786,357.76
  5. Step 5: Solve for x
    x = 14,085,786,357.76/172,696.96
  6. Step 6: Final answer
    x = 81,563.60

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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.