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Finding the Fourth Proportional to 172,859.99, 259,268.11 and 67,752.77

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Solution

The fourth proportional to 172,859.99, 259,268.11 and 67,752.77 is: 101,620.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,859.99 : 259,268.11 = 67,752.77 : x
  2. Step 2: Convert to fraction form
    172,859.99/259,268.11 = 67,752.77/x
  3. Step 3: Cross multiply
    172,859.99x = 259,268.11 × 67,752.77
  4. Step 4: Simplify right side
    172,859.99x = 17,566,131,159.44
  5. Step 5: Solve for x
    x = 17,566,131,159.44/172,859.99
  6. Step 6: Final answer
    x = 101,620.58

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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.