Home / 128,201.35-192,302.17-33,431.45

Finding the Fourth Proportional to 128,201.35, 192,302.17 and 33,431.45

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Solution

The fourth proportional to 128,201.35, 192,302.17 and 33,431.45 is: 50,147.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,201.35 : 192,302.17 = 33,431.45 : x
  2. Step 2: Convert to fraction form
    128,201.35/192,302.17 = 33,431.45/x
  3. Step 3: Cross multiply
    128,201.35x = 192,302.17 × 33,431.45
  4. Step 4: Simplify right side
    128,201.35x = 6,428,940,381.25
  5. Step 5: Solve for x
    x = 6,428,940,381.25/128,201.35
  6. Step 6: Final answer
    x = 50,147.21

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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.