Home / 190,300.38-262,614.52-105,422.91

Finding the Fourth Proportional to 190,300.38, 262,614.52 and 105,422.91

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Solution

The fourth proportional to 190,300.38, 262,614.52 and 105,422.91 is: 145,483.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,300.38 : 262,614.52 = 105,422.91 : x
  2. Step 2: Convert to fraction form
    190,300.38/262,614.52 = 105,422.91/x
  3. Step 3: Cross multiply
    190,300.38x = 262,614.52 × 105,422.91
  4. Step 4: Simplify right side
    190,300.38x = 27,685,586,906.65
  5. Step 5: Solve for x
    x = 27,685,586,906.65/190,300.38
  6. Step 6: Final answer
    x = 145,483.61

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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.