Home / 190,673.40-263,129.33-105,790.26

Finding the Fourth Proportional to 190,673.40, 263,129.33 and 105,790.26

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Solution

The fourth proportional to 190,673.40, 263,129.33 and 105,790.26 is: 145,990.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,673.40 : 263,129.33 = 105,790.26 : x
  2. Step 2: Convert to fraction form
    190,673.40/263,129.33 = 105,790.26/x
  3. Step 3: Cross multiply
    190,673.40x = 263,129.33 × 105,790.26
  4. Step 4: Simplify right side
    190,673.40x = 27,836,520,234.33
  5. Step 5: Solve for x
    x = 27,836,520,234.33/190,673.40
  6. Step 6: Final answer
    x = 145,990.58

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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.