Home / 236,038.26-325,728.69-128,609.18

Finding the Fourth Proportional to 236,038.26, 325,728.69 and 128,609.18

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Solution

The fourth proportional to 236,038.26, 325,728.69 and 128,609.18 is: 177,478.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,038.26 : 325,728.69 = 128,609.18 : x
  2. Step 2: Convert to fraction form
    236,038.26/325,728.69 = 128,609.18/x
  3. Step 3: Cross multiply
    236,038.26x = 325,728.69 × 128,609.18
  4. Step 4: Simplify right side
    236,038.26x = 41,891,698,094.73
  5. Step 5: Solve for x
    x = 41,891,698,094.73/236,038.26
  6. Step 6: Final answer
    x = 177,478.42

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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.