Home / 191,629.47-264,448.62-105,589.65

Finding the Fourth Proportional to 191,629.47, 264,448.62 and 105,589.65

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Solution

The fourth proportional to 191,629.47, 264,448.62 and 105,589.65 is: 145,713.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,629.47 : 264,448.62 = 105,589.65 : x
  2. Step 2: Convert to fraction form
    191,629.47/264,448.62 = 105,589.65/x
  3. Step 3: Cross multiply
    191,629.47x = 264,448.62 × 105,589.65
  4. Step 4: Simplify right side
    191,629.47x = 27,923,037,228.78
  5. Step 5: Solve for x
    x = 27,923,037,228.78/191,629.47
  6. Step 6: Final answer
    x = 145,713.69

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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.