Home / 236,210.64-325,961.08-128,778.56

Finding the Fourth Proportional to 236,210.64, 325,961.08 and 128,778.56

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Solution

The fourth proportional to 236,210.64, 325,961.08 and 128,778.56 is: 177,709.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,210.64 : 325,961.08 = 128,778.56 : x
  2. Step 2: Convert to fraction form
    236,210.64/325,961.08 = 128,778.56/x
  3. Step 3: Cross multiply
    236,210.64x = 325,961.08 × 128,778.56
  4. Step 4: Simplify right side
    236,210.64x = 41,976,798,498.44
  5. Step 5: Solve for x
    x = 41,976,798,498.44/236,210.64
  6. Step 6: Final answer
    x = 177,709.18

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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.