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Finding the Fourth Proportional to 171,843.50, 257,420.34 and 87,600.26

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Solution

The fourth proportional to 171,843.50, 257,420.34 and 87,600.26 is: 131,224.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,843.50 : 257,420.34 = 87,600.26 : x
  2. Step 2: Convert to fraction form
    171,843.50/257,420.34 = 87,600.26/x
  3. Step 3: Cross multiply
    171,843.50x = 257,420.34 × 87,600.26
  4. Step 4: Simplify right side
    171,843.50x = 22,550,088,713.29
  5. Step 5: Solve for x
    x = 22,550,088,713.29/171,843.50
  6. Step 6: Final answer
    x = 131,224.57

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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.