Home / 236,074.68-325,778.76-128,645.64

Finding the Fourth Proportional to 236,074.68, 325,778.76 and 128,645.64

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Solution

The fourth proportional to 236,074.68, 325,778.76 and 128,645.64 is: 177,528.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,074.68 : 325,778.76 = 128,645.64 : x
  2. Step 2: Convert to fraction form
    236,074.68/325,778.76 = 128,645.64/x
  3. Step 3: Cross multiply
    236,074.68x = 325,778.76 × 128,645.64
  4. Step 4: Simplify right side
    236,074.68x = 41,910,017,078.61
  5. Step 5: Solve for x
    x = 41,910,017,078.61/236,074.68
  6. Step 6: Final answer
    x = 177,528.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.