Home / 190,672.03-263,128.80-105,790.51

Finding the Fourth Proportional to 190,672.03, 263,128.80 and 105,790.51

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Solution

The fourth proportional to 190,672.03, 263,128.80 and 105,790.51 is: 145,991.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,672.03 : 263,128.80 = 105,790.51 : x
  2. Step 2: Convert to fraction form
    190,672.03/263,128.80 = 105,790.51/x
  3. Step 3: Cross multiply
    190,672.03x = 263,128.80 × 105,790.51
  4. Step 4: Simplify right side
    190,672.03x = 27,836,529,947.69
  5. Step 5: Solve for x
    x = 27,836,529,947.69/190,672.03
  6. Step 6: Final answer
    x = 145,991.68

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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.