Home / 128,511.09-192,718.76-44,247.69

Finding the Fourth Proportional to 128,511.09, 192,718.76 and 44,247.69

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Solution

The fourth proportional to 128,511.09, 192,718.76 and 44,247.69 is: 66,355.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,511.09 : 192,718.76 = 44,247.69 : x
  2. Step 2: Convert to fraction form
    128,511.09/192,718.76 = 44,247.69/x
  3. Step 3: Cross multiply
    128,511.09x = 192,718.76 × 44,247.69
  4. Step 4: Simplify right side
    128,511.09x = 8,527,359,728.43
  5. Step 5: Solve for x
    x = 8,527,359,728.43/128,511.09
  6. Step 6: Final answer
    x = 66,355.05

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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.