Home / 127,968.40-192,110.55-80,583.40

Finding the Fourth Proportional to 127,968.40, 192,110.55 and 80,583.40

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Solution

The fourth proportional to 127,968.40, 192,110.55 and 80,583.40 is: 120,974.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,968.40 : 192,110.55 = 80,583.40 : x
  2. Step 2: Convert to fraction form
    127,968.40/192,110.55 = 80,583.40/x
  3. Step 3: Cross multiply
    127,968.40x = 192,110.55 × 80,583.40
  4. Step 4: Simplify right side
    127,968.40x = 15,480,921,294.87
  5. Step 5: Solve for x
    x = 15,480,921,294.87/127,968.40
  6. Step 6: Final answer
    x = 120,974.56

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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.