Home / 107,448.75-161,198.34-105,663.61

Finding the Fourth Proportional to 107,448.75, 161,198.34 and 105,663.61

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Solution

The fourth proportional to 107,448.75, 161,198.34 and 105,663.61 is: 158,520.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,448.75 : 161,198.34 = 105,663.61 : x
  2. Step 2: Convert to fraction form
    107,448.75/161,198.34 = 105,663.61/x
  3. Step 3: Cross multiply
    107,448.75x = 161,198.34 × 105,663.61
  4. Step 4: Simplify right side
    107,448.75x = 17,032,798,002.09
  5. Step 5: Solve for x
    x = 17,032,798,002.09/107,448.75
  6. Step 6: Final answer
    x = 158,520.21

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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.