Home / 128,323-192,481.26-34,826.32

Finding the Fourth Proportional to 128,323, 192,481.26 and 34,826.32

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Solution

The fourth proportional to 128,323, 192,481.26 and 34,826.32 is: 52,238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,323 : 192,481.26 = 34,826.32 : x
  2. Step 2: Convert to fraction form
    128,323/192,481.26 = 34,826.32/x
  3. Step 3: Cross multiply
    128,323x = 192,481.26 × 34,826.32
  4. Step 4: Simplify right side
    128,323x = 6,703,413,954.76
  5. Step 5: Solve for x
    x = 6,703,413,954.76/128,323
  6. Step 6: Final answer
    x = 52,238.60

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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.