Home / 105,183.08-145,163.15-62,741.61

Finding the Fourth Proportional to 105,183.08, 145,163.15 and 62,741.61

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Solution

The fourth proportional to 105,183.08, 145,163.15 and 62,741.61 is: 86,589.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,183.08 : 145,163.15 = 62,741.61 : x
  2. Step 2: Convert to fraction form
    105,183.08/145,163.15 = 62,741.61/x
  3. Step 3: Cross multiply
    105,183.08x = 145,163.15 × 62,741.61
  4. Step 4: Simplify right side
    105,183.08x = 9,107,770,161.75
  5. Step 5: Solve for x
    x = 9,107,770,161.75/105,183.08
  6. Step 6: Final answer
    x = 86,589.69

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1.5x scale

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.