Home / 235,512.65-325,004.31-128,080.37

Finding the Fourth Proportional to 235,512.65, 325,004.31 and 128,080.37

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Solution

The fourth proportional to 235,512.65, 325,004.31 and 128,080.37 is: 176,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,512.65 : 325,004.31 = 128,080.37 : x
  2. Step 2: Convert to fraction form
    235,512.65/325,004.31 = 128,080.37/x
  3. Step 3: Cross multiply
    235,512.65x = 325,004.31 × 128,080.37
  4. Step 4: Simplify right side
    235,512.65x = 41,626,670,651.37
  5. Step 5: Solve for x
    x = 41,626,670,651.37/235,512.65
  6. Step 6: Final answer
    x = 176,749.20

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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.