Home / 235,512.63-325,004.31-128,080.38

Finding the Fourth Proportional to 235,512.63, 325,004.31 and 128,080.38

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Solution

The fourth proportional to 235,512.63, 325,004.31 and 128,080.38 is: 176,749.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,512.63 : 325,004.31 = 128,080.38 : x
  2. Step 2: Convert to fraction form
    235,512.63/325,004.31 = 128,080.38/x
  3. Step 3: Cross multiply
    235,512.63x = 325,004.31 × 128,080.38
  4. Step 4: Simplify right side
    235,512.63x = 41,626,675,526.44
  5. Step 5: Solve for x
    x = 41,626,675,526.44/235,512.63
  6. Step 6: Final answer
    x = 176,749.23

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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.