Home / 128,626.03-192,944.18-35,131.51

Finding the Fourth Proportional to 128,626.03, 192,944.18 and 35,131.51

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Solution

The fourth proportional to 128,626.03, 192,944.18 and 35,131.51 is: 52,698.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,626.03 : 192,944.18 = 35,131.51 : x
  2. Step 2: Convert to fraction form
    128,626.03/192,944.18 = 35,131.51/x
  3. Step 3: Cross multiply
    128,626.03x = 192,944.18 × 35,131.51
  4. Step 4: Simplify right side
    128,626.03x = 6,778,420,389.11
  5. Step 5: Solve for x
    x = 6,778,420,389.11/128,626.03
  6. Step 6: Final answer
    x = 52,698.67

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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.