Home / 128,264.46-192,396.69-34,767.78

Finding the Fourth Proportional to 128,264.46, 192,396.69 and 34,767.78

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Solution

The fourth proportional to 128,264.46, 192,396.69 and 34,767.78 is: 52,151.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,264.46 : 192,396.69 = 34,767.78 : x
  2. Step 2: Convert to fraction form
    128,264.46/192,396.69 = 34,767.78/x
  3. Step 3: Cross multiply
    128,264.46x = 192,396.69 × 34,767.78
  4. Step 4: Simplify right side
    128,264.46x = 6,689,205,790.65
  5. Step 5: Solve for x
    x = 6,689,205,790.65/128,264.46
  6. Step 6: Final answer
    x = 52,151.67

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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.