Home / 128,619.22-192,881.44-44,357.76

Finding the Fourth Proportional to 128,619.22, 192,881.44 and 44,357.76

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Solution

The fourth proportional to 128,619.22, 192,881.44 and 44,357.76 is: 66,520.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,619.22 : 192,881.44 = 44,357.76 : x
  2. Step 2: Convert to fraction form
    128,619.22/192,881.44 = 44,357.76/x
  3. Step 3: Cross multiply
    128,619.22x = 192,881.44 × 44,357.76
  4. Step 4: Simplify right side
    128,619.22x = 8,555,788,623.97
  5. Step 5: Solve for x
    x = 8,555,788,623.97/128,619.22
  6. Step 6: Final answer
    x = 66,520.30

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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.