Home / 128,467.11-192,713.61-44,216.20

Finding the Fourth Proportional to 128,467.11, 192,713.61 and 44,216.20

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Solution

The fourth proportional to 128,467.11, 192,713.61 and 44,216.20 is: 66,328.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,467.11 : 192,713.61 = 44,216.20 : x
  2. Step 2: Convert to fraction form
    128,467.11/192,713.61 = 44,216.20/x
  3. Step 3: Cross multiply
    128,467.11x = 192,713.61 × 44,216.20
  4. Step 4: Simplify right side
    128,467.11x = 8,521,063,929.18
  5. Step 5: Solve for x
    x = 8,521,063,929.18/128,467.11
  6. Step 6: Final answer
    x = 66,328.76

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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.