Home / 128,022.32-192,063.35-43,783.13

Finding the Fourth Proportional to 128,022.32, 192,063.35 and 43,783.13

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Solution

The fourth proportional to 128,022.32, 192,063.35 and 43,783.13 is: 65,684.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,022.32 : 192,063.35 = 43,783.13 : x
  2. Step 2: Convert to fraction form
    128,022.32/192,063.35 = 43,783.13/x
  3. Step 3: Cross multiply
    128,022.32x = 192,063.35 × 43,783.13
  4. Step 4: Simplify right side
    128,022.32x = 8,409,135,210.90
  5. Step 5: Solve for x
    x = 8,409,135,210.90/128,022.32
  6. Step 6: Final answer
    x = 65,684.91

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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.