Home / 190,479.23-262,861.71-105,596.29

Finding the Fourth Proportional to 190,479.23, 262,861.71 and 105,596.29

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Solution

The fourth proportional to 190,479.23, 262,861.71 and 105,596.29 is: 145,723.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,479.23 : 262,861.71 = 105,596.29 : x
  2. Step 2: Convert to fraction form
    190,479.23/262,861.71 = 105,596.29/x
  3. Step 3: Cross multiply
    190,479.23x = 262,861.71 × 105,596.29
  4. Step 4: Simplify right side
    190,479.23x = 27,757,221,291.65
  5. Step 5: Solve for x
    x = 27,757,221,291.65/190,479.23
  6. Step 6: Final answer
    x = 145,723.09

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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.