Home / 172,185.75-257,849.07-108,814.69

Finding the Fourth Proportional to 172,185.75, 257,849.07 and 108,814.69

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Solution

The fourth proportional to 172,185.75, 257,849.07 and 108,814.69 is: 162,950.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,185.75 : 257,849.07 = 108,814.69 : x
  2. Step 2: Convert to fraction form
    172,185.75/257,849.07 = 108,814.69/x
  3. Step 3: Cross multiply
    172,185.75x = 257,849.07 × 108,814.69
  4. Step 4: Simplify right side
    172,185.75x = 28,057,766,618.84
  5. Step 5: Solve for x
    x = 28,057,766,618.84/172,185.75
  6. Step 6: Final answer
    x = 162,950.57

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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.