Home / 236,112.64-325,825.80-128,680.36

Finding the Fourth Proportional to 236,112.64, 325,825.80 and 128,680.36

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Solution

The fourth proportional to 236,112.64, 325,825.80 and 128,680.36 is: 177,573.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,112.64 : 325,825.80 = 128,680.36 : x
  2. Step 2: Convert to fraction form
    236,112.64/325,825.80 = 128,680.36/x
  3. Step 3: Cross multiply
    236,112.64x = 325,825.80 × 128,680.36
  4. Step 4: Simplify right side
    236,112.64x = 41,927,381,241.29
  5. Step 5: Solve for x
    x = 41,927,381,241.29/236,112.64
  6. Step 6: Final answer
    x = 177,573.64

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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.