Home / 192,433.40-288,995.70-139,902.20

Finding the Fourth Proportional to 192,433.40, 288,995.70 and 139,902.20

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Solution

The fourth proportional to 192,433.40, 288,995.70 and 139,902.20 is: 210,104.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,433.40 : 288,995.70 = 139,902.20 : x
  2. Step 2: Convert to fraction form
    192,433.40/288,995.70 = 139,902.20/x
  3. Step 3: Cross multiply
    192,433.40x = 288,995.70 × 139,902.20
  4. Step 4: Simplify right side
    192,433.40x = 40,431,134,220.54
  5. Step 5: Solve for x
    x = 40,431,134,220.54/192,433.40
  6. Step 6: Final answer
    x = 210,104.56

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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.