Home / 185,586.09-278,563.66-85,768.67

Finding the Fourth Proportional to 185,586.09, 278,563.66 and 85,768.67

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Solution

The fourth proportional to 185,586.09, 278,563.66 and 85,768.67 is: 128,738.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,586.09 : 278,563.66 = 85,768.67 : x
  2. Step 2: Convert to fraction form
    185,586.09/278,563.66 = 85,768.67/x
  3. Step 3: Cross multiply
    185,586.09x = 278,563.66 × 85,768.67
  4. Step 4: Simplify right side
    185,586.09x = 23,892,035,110.52
  5. Step 5: Solve for x
    x = 23,892,035,110.52/185,586.09
  6. Step 6: Final answer
    x = 128,738.29

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1.5x scale

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.