Home / 236,040.51-325,731.79-128,611.43

Finding the Fourth Proportional to 236,040.51, 325,731.79 and 128,611.43

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Solution

The fourth proportional to 236,040.51, 325,731.79 and 128,611.43 is: 177,481.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,040.51 : 325,731.79 = 128,611.43 : x
  2. Step 2: Convert to fraction form
    236,040.51/325,731.79 = 128,611.43/x
  3. Step 3: Cross multiply
    236,040.51x = 325,731.79 × 128,611.43
  4. Step 4: Simplify right side
    236,040.51x = 41,892,831,308.36
  5. Step 5: Solve for x
    x = 41,892,831,308.36/236,040.51
  6. Step 6: Final answer
    x = 177,481.53

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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.