Home / 190,637.24-285,769.92-90,770.60

Finding the Fourth Proportional to 190,637.24, 285,769.92 and 90,770.60

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Solution

The fourth proportional to 190,637.24, 285,769.92 and 90,770.60 is: 136,067.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,637.24 : 285,769.92 = 90,770.60 : x
  2. Step 2: Convert to fraction form
    190,637.24/285,769.92 = 90,770.60/x
  3. Step 3: Cross multiply
    190,637.24x = 285,769.92 × 90,770.60
  4. Step 4: Simplify right side
    190,637.24x = 25,939,507,100.35
  5. Step 5: Solve for x
    x = 25,939,507,100.35/190,637.24
  6. Step 6: Final answer
    x = 136,067.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.