Home / 190,599.78-263,027.76-105,716.85

Finding the Fourth Proportional to 190,599.78, 263,027.76 and 105,716.85

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Solution

The fourth proportional to 190,599.78, 263,027.76 and 105,716.85 is: 145,889.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,599.78 : 263,027.76 = 105,716.85 : x
  2. Step 2: Convert to fraction form
    190,599.78/263,027.76 = 105,716.85/x
  3. Step 3: Cross multiply
    190,599.78x = 263,027.76 × 105,716.85
  4. Step 4: Simplify right side
    190,599.78x = 27,806,464,866.96
  5. Step 5: Solve for x
    x = 27,806,464,866.96/190,599.78
  6. Step 6: Final answer
    x = 145,889.28

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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.