Home / 128,441.10-192,412.38-94,645.80

Finding the Fourth Proportional to 128,441.10, 192,412.38 and 94,645.80

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Solution

The fourth proportional to 128,441.10, 192,412.38 and 94,645.80 is: 141,785.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,441.10 : 192,412.38 = 94,645.80 : x
  2. Step 2: Convert to fraction form
    128,441.10/192,412.38 = 94,645.80/x
  3. Step 3: Cross multiply
    128,441.10x = 192,412.38 × 94,645.80
  4. Step 4: Simplify right side
    128,441.10x = 18,211,023,635.00
  5. Step 5: Solve for x
    x = 18,211,023,635.00/128,441.10
  6. Step 6: Final answer
    x = 141,785.02

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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.