Home / 128,091.95-192,144.93-53,219.67

Finding the Fourth Proportional to 128,091.95, 192,144.93 and 53,219.67

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Solution

The fourth proportional to 128,091.95, 192,144.93 and 53,219.67 is: 79,832.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,091.95 : 192,144.93 = 53,219.67 : x
  2. Step 2: Convert to fraction form
    128,091.95/192,144.93 = 53,219.67/x
  3. Step 3: Cross multiply
    128,091.95x = 192,144.93 × 53,219.67
  4. Step 4: Simplify right side
    128,091.95x = 10,225,888,806.05
  5. Step 5: Solve for x
    x = 10,225,888,806.05/128,091.95
  6. Step 6: Final answer
    x = 79,832.41

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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.