Home / 190,236.20-285,356.72-90,406.13

Finding the Fourth Proportional to 190,236.20, 285,356.72 and 90,406.13

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Solution

The fourth proportional to 190,236.20, 285,356.72 and 90,406.13 is: 135,610.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,236.20 : 285,356.72 = 90,406.13 : x
  2. Step 2: Convert to fraction form
    190,236.20/285,356.72 = 90,406.13/x
  3. Step 3: Cross multiply
    190,236.20x = 285,356.72 × 90,406.13
  4. Step 4: Simplify right side
    190,236.20x = 25,797,995,523.93
  5. Step 5: Solve for x
    x = 25,797,995,523.93/190,236.20
  6. Step 6: Final answer
    x = 135,610.34

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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.