Home / 105,741.78-145,923.75-57,996.06

Finding the Fourth Proportional to 105,741.78, 145,923.75 and 57,996.06

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Solution

The fourth proportional to 105,741.78, 145,923.75 and 57,996.06 is: 80,034.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,741.78 : 145,923.75 = 57,996.06 : x
  2. Step 2: Convert to fraction form
    105,741.78/145,923.75 = 57,996.06/x
  3. Step 3: Cross multiply
    105,741.78x = 145,923.75 × 57,996.06
  4. Step 4: Simplify right side
    105,741.78x = 8,463,002,560.43
  5. Step 5: Solve for x
    x = 8,463,002,560.43/105,741.78
  6. Step 6: Final answer
    x = 80,034.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.