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Finding the Fourth Proportional to 172,879.94, 259,142.04 and 66,234.93

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Solution

The fourth proportional to 172,879.94, 259,142.04 and 66,234.93 is: 99,284.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,879.94 : 259,142.04 = 66,234.93 : x
  2. Step 2: Convert to fraction form
    172,879.94/259,142.04 = 66,234.93/x
  3. Step 3: Cross multiply
    172,879.94x = 259,142.04 × 66,234.93
  4. Step 4: Simplify right side
    172,879.94x = 17,164,254,879.46
  5. Step 5: Solve for x
    x = 17,164,254,879.46/172,879.94
  6. Step 6: Final answer
    x = 99,284.25

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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.