Home / 128,183.12-192,395.30-65,048.57

Finding the Fourth Proportional to 128,183.12, 192,395.30 and 65,048.57

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Solution

The fourth proportional to 128,183.12, 192,395.30 and 65,048.57 is: 97,634.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,183.12 : 192,395.30 = 65,048.57 : x
  2. Step 2: Convert to fraction form
    128,183.12/192,395.30 = 65,048.57/x
  3. Step 3: Cross multiply
    128,183.12x = 192,395.30 × 65,048.57
  4. Step 4: Simplify right side
    128,183.12x = 12,515,037,852.50
  5. Step 5: Solve for x
    x = 12,515,037,852.50/128,183.12
  6. Step 6: Final answer
    x = 97,634.06

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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.