Home / 235,629.90-325,170.70-128,200.73

Finding the Fourth Proportional to 235,629.90, 325,170.70 and 128,200.73

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Solution

The fourth proportional to 235,629.90, 325,170.70 and 128,200.73 is: 176,917.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,629.90 : 325,170.70 = 128,200.73 : x
  2. Step 2: Convert to fraction form
    235,629.90/325,170.70 = 128,200.73/x
  3. Step 3: Cross multiply
    235,629.90x = 325,170.70 × 128,200.73
  4. Step 4: Simplify right side
    235,629.90x = 41,687,119,168.26
  5. Step 5: Solve for x
    x = 41,687,119,168.26/235,629.90
  6. Step 6: Final answer
    x = 176,917.78

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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.