Home / 236,112.58-325,825.87-128,680.31

Finding the Fourth Proportional to 236,112.58, 325,825.87 and 128,680.31

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Solution

The fourth proportional to 236,112.58, 325,825.87 and 128,680.31 is: 177,573.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,112.58 : 325,825.87 = 128,680.31 : x
  2. Step 2: Convert to fraction form
    236,112.58/325,825.87 = 128,680.31/x
  3. Step 3: Cross multiply
    236,112.58x = 325,825.87 × 128,680.31
  4. Step 4: Simplify right side
    236,112.58x = 41,927,373,957.62
  5. Step 5: Solve for x
    x = 41,927,373,957.62/236,112.58
  6. Step 6: Final answer
    x = 177,573.66

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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.