Home / 128,965.46-193,518.78-50,082.80

Finding the Fourth Proportional to 128,965.46, 193,518.78 and 50,082.80

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Solution

The fourth proportional to 128,965.46, 193,518.78 and 50,082.80 is: 75,151.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,965.46 : 193,518.78 = 50,082.80 : x
  2. Step 2: Convert to fraction form
    128,965.46/193,518.78 = 50,082.80/x
  3. Step 3: Cross multiply
    128,965.46x = 193,518.78 × 50,082.80
  4. Step 4: Simplify right side
    128,965.46x = 9,691,962,354.98
  5. Step 5: Solve for x
    x = 9,691,962,354.98/128,965.46
  6. Step 6: Final answer
    x = 75,151.61

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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.