Home / 190,575.60-263,010.48-105,720

Finding the Fourth Proportional to 190,575.60, 263,010.48 and 105,720

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Solution

The fourth proportional to 190,575.60, 263,010.48 and 105,720 is: 145,902.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,575.60 : 263,010.48 = 105,720 : x
  2. Step 2: Convert to fraction form
    190,575.60/263,010.48 = 105,720/x
  3. Step 3: Cross multiply
    190,575.60x = 263,010.48 × 105,720
  4. Step 4: Simplify right side
    190,575.60x = 27,805,467,945.60
  5. Step 5: Solve for x
    x = 27,805,467,945.60/190,575.60
  6. Step 6: Final answer
    x = 145,902.56

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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.