Home / 190,292.35-285,478.60-71,961.07

Finding the Fourth Proportional to 190,292.35, 285,478.60 and 71,961.07

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Solution

The fourth proportional to 190,292.35, 285,478.60 and 71,961.07 is: 107,956.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,292.35 : 285,478.60 = 71,961.07 : x
  2. Step 2: Convert to fraction form
    190,292.35/285,478.60 = 71,961.07/x
  3. Step 3: Cross multiply
    190,292.35x = 285,478.60 × 71,961.07
  4. Step 4: Simplify right side
    190,292.35x = 20,543,345,518.10
  5. Step 5: Solve for x
    x = 20,543,345,518.10/190,292.35
  6. Step 6: Final answer
    x = 107,956.76

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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.