Home / 128,076.26-192,144.63-43,837.46

Finding the Fourth Proportional to 128,076.26, 192,144.63 and 43,837.46

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Solution

The fourth proportional to 128,076.26, 192,144.63 and 43,837.46 is: 65,766.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,076.26 : 192,144.63 = 43,837.46 : x
  2. Step 2: Convert to fraction form
    128,076.26/192,144.63 = 43,837.46/x
  3. Step 3: Cross multiply
    128,076.26x = 192,144.63 × 43,837.46
  4. Step 4: Simplify right side
    128,076.26x = 8,423,132,531.84
  5. Step 5: Solve for x
    x = 8,423,132,531.84/128,076.26
  6. Step 6: Final answer
    x = 65,766.54

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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.