Home / 190,313.20-285,082.26-90,169.84

Finding the Fourth Proportional to 190,313.20, 285,082.26 and 90,169.84

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Solution

The fourth proportional to 190,313.20, 285,082.26 and 90,169.84 is: 135,071.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,313.20 : 285,082.26 = 90,169.84 : x
  2. Step 2: Convert to fraction form
    190,313.20/285,082.26 = 90,169.84/x
  3. Step 3: Cross multiply
    190,313.20x = 285,082.26 × 90,169.84
  4. Step 4: Simplify right side
    190,313.20x = 25,705,821,771.04
  5. Step 5: Solve for x
    x = 25,705,821,771.04/190,313.20
  6. Step 6: Final answer
    x = 135,071.14

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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.