Home / 190,805.72-263,283.90-105,923.48

Finding the Fourth Proportional to 190,805.72, 263,283.90 and 105,923.48

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Solution

The fourth proportional to 190,805.72, 263,283.90 and 105,923.48 is: 146,158.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,805.72 : 263,283.90 = 105,923.48 : x
  2. Step 2: Convert to fraction form
    190,805.72/263,283.90 = 105,923.48/x
  3. Step 3: Cross multiply
    190,805.72x = 263,283.90 × 105,923.48
  4. Step 4: Simplify right side
    190,805.72x = 27,887,946,915.97
  5. Step 5: Solve for x
    x = 27,887,946,915.97/190,805.72
  6. Step 6: Final answer
    x = 146,158.86

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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.