Home / 193,709.15-289,713.89-172,511.35

Finding the Fourth Proportional to 193,709.15, 289,713.89 and 172,511.35

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Solution

The fourth proportional to 193,709.15, 289,713.89 and 172,511.35 is: 258,010.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,709.15 : 289,713.89 = 172,511.35 : x
  2. Step 2: Convert to fraction form
    193,709.15/289,713.89 = 172,511.35/x
  3. Step 3: Cross multiply
    193,709.15x = 289,713.89 × 172,511.35
  4. Step 4: Simplify right side
    193,709.15x = 49,978,934,634.65
  5. Step 5: Solve for x
    x = 49,978,934,634.65/193,709.15
  6. Step 6: Final answer
    x = 258,010.19

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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.