Home / 236,209.64-325,959.70-128,777.56

Finding the Fourth Proportional to 236,209.64, 325,959.70 and 128,777.56

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Solution

The fourth proportional to 236,209.64, 325,959.70 and 128,777.56 is: 177,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,209.64 : 325,959.70 = 128,777.56 : x
  2. Step 2: Convert to fraction form
    236,209.64/325,959.70 = 128,777.56/x
  3. Step 3: Cross multiply
    236,209.64x = 325,959.70 × 128,777.56
  4. Step 4: Simplify right side
    236,209.64x = 41,976,294,824.33
  5. Step 5: Solve for x
    x = 41,976,294,824.33/236,209.64
  6. Step 6: Final answer
    x = 177,707.80

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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.