Home / 194,939.75-269,017.67-105,515.75

Finding the Fourth Proportional to 194,939.75, 269,017.67 and 105,515.75

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Solution

The fourth proportional to 194,939.75, 269,017.67 and 105,515.75 is: 145,612.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,939.75 : 269,017.67 = 105,515.75 : x
  2. Step 2: Convert to fraction form
    194,939.75/269,017.67 = 105,515.75/x
  3. Step 3: Cross multiply
    194,939.75x = 269,017.67 × 105,515.75
  4. Step 4: Simplify right side
    194,939.75x = 28,385,601,213.30
  5. Step 5: Solve for x
    x = 28,385,601,213.30/194,939.75
  6. Step 6: Final answer
    x = 145,612.18

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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.