Home / 236,128.56-325,857.66-128,698.68

Finding the Fourth Proportional to 236,128.56, 325,857.66 and 128,698.68

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Solution

The fourth proportional to 236,128.56, 325,857.66 and 128,698.68 is: 177,604.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,128.56 : 325,857.66 = 128,698.68 : x
  2. Step 2: Convert to fraction form
    236,128.56/325,857.66 = 128,698.68/x
  3. Step 3: Cross multiply
    236,128.56x = 325,857.66 × 128,698.68
  4. Step 4: Simplify right side
    236,128.56x = 41,937,450,709.89
  5. Step 5: Solve for x
    x = 41,937,450,709.89/236,128.56
  6. Step 6: Final answer
    x = 177,604.31

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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.