Home / 193,828.97-290,739.78-105,643.65

Finding the Fourth Proportional to 193,828.97, 290,739.78 and 105,643.65

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Solution

The fourth proportional to 193,828.97, 290,739.78 and 105,643.65 is: 158,463.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,828.97 : 290,739.78 = 105,643.65 : x
  2. Step 2: Convert to fraction form
    193,828.97/290,739.78 = 105,643.65/x
  3. Step 3: Cross multiply
    193,828.97x = 290,739.78 × 105,643.65
  4. Step 4: Simplify right side
    193,828.97x = 30,714,811,559.40
  5. Step 5: Solve for x
    x = 30,714,811,559.40/193,828.97
  6. Step 6: Final answer
    x = 158,463.48

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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.