Home / 128,255.36-192,382.77-33,485.18

Finding the Fourth Proportional to 128,255.36, 192,382.77 and 33,485.18

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Solution

The fourth proportional to 128,255.36, 192,382.77 and 33,485.18 is: 50,227.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,255.36 : 192,382.77 = 33,485.18 : x
  2. Step 2: Convert to fraction form
    128,255.36/192,382.77 = 33,485.18/x
  3. Step 3: Cross multiply
    128,255.36x = 192,382.77 × 33,485.18
  4. Step 4: Simplify right side
    128,255.36x = 6,441,971,682.35
  5. Step 5: Solve for x
    x = 6,441,971,682.35/128,255.36
  6. Step 6: Final answer
    x = 50,227.70

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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.