Home / 185,647.20-278,571.60-79,013.76

Finding the Fourth Proportional to 185,647.20, 278,571.60 and 79,013.76

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Solution

The fourth proportional to 185,647.20, 278,571.60 and 79,013.76 is: 118,563.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,647.20 : 278,571.60 = 79,013.76 : x
  2. Step 2: Convert to fraction form
    185,647.20/278,571.60 = 79,013.76/x
  3. Step 3: Cross multiply
    185,647.20x = 278,571.60 × 79,013.76
  4. Step 4: Simplify right side
    185,647.20x = 22,010,989,545.22
  5. Step 5: Solve for x
    x = 22,010,989,545.22/185,647.20
  6. Step 6: Final answer
    x = 118,563.54

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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.