Home / 190,815.12-263,307.24-105,927.12

Finding the Fourth Proportional to 190,815.12, 263,307.24 and 105,927.12

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Solution

The fourth proportional to 190,815.12, 263,307.24 and 105,927.12 is: 146,169.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,815.12 : 263,307.24 = 105,927.12 : x
  2. Step 2: Convert to fraction form
    190,815.12/263,307.24 = 105,927.12/x
  3. Step 3: Cross multiply
    190,815.12x = 263,307.24 × 105,927.12
  4. Step 4: Simplify right side
    190,815.12x = 27,891,377,608.35
  5. Step 5: Solve for x
    x = 27,891,377,608.35/190,815.12
  6. Step 6: Final answer
    x = 146,169.64

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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.