Home / 236,081.85-325,783.44-128,649.57

Finding the Fourth Proportional to 236,081.85, 325,783.44 and 128,649.57

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Solution

The fourth proportional to 236,081.85, 325,783.44 and 128,649.57 is: 177,531.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,081.85 : 325,783.44 = 128,649.57 : x
  2. Step 2: Convert to fraction form
    236,081.85/325,783.44 = 128,649.57/x
  3. Step 3: Cross multiply
    236,081.85x = 325,783.44 × 128,649.57
  4. Step 4: Simplify right side
    236,081.85x = 41,911,899,469.12
  5. Step 5: Solve for x
    x = 41,911,899,469.12/236,081.85
  6. Step 6: Final answer
    x = 177,531.22

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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.