Home / 128,178.03-192,211.71-43,946.43

Finding the Fourth Proportional to 128,178.03, 192,211.71 and 43,946.43

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Solution

The fourth proportional to 128,178.03, 192,211.71 and 43,946.43 is: 65,900.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,178.03 : 192,211.71 = 43,946.43 : x
  2. Step 2: Convert to fraction form
    128,178.03/192,211.71 = 43,946.43/x
  3. Step 3: Cross multiply
    128,178.03x = 192,211.71 × 43,946.43
  4. Step 4: Simplify right side
    128,178.03x = 8,447,018,458.70
  5. Step 5: Solve for x
    x = 8,447,018,458.70/128,178.03
  6. Step 6: Final answer
    x = 65,900.67

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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.