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Finding the Fourth Proportional to 172,999.92, 259,319.88 and 73,076.88

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Solution

The fourth proportional to 172,999.92, 259,319.88 and 73,076.88 is: 109,539.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,999.92 : 259,319.88 = 73,076.88 : x
  2. Step 2: Convert to fraction form
    172,999.92/259,319.88 = 73,076.88/x
  3. Step 3: Cross multiply
    172,999.92x = 259,319.88 × 73,076.88
  4. Step 4: Simplify right side
    172,999.92x = 18,950,287,752.37
  5. Step 5: Solve for x
    x = 18,950,287,752.37/172,999.92
  6. Step 6: Final answer
    x = 109,539.29

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1.5x scale

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.