Home / 236,101.58-325,810.68-128,669.28

Finding the Fourth Proportional to 236,101.58, 325,810.68 and 128,669.28

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Solution

The fourth proportional to 236,101.58, 325,810.68 and 128,669.28 is: 177,558.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,101.58 : 325,810.68 = 128,669.28 : x
  2. Step 2: Convert to fraction form
    236,101.58/325,810.68 = 128,669.28/x
  3. Step 3: Cross multiply
    236,101.58x = 325,810.68 × 128,669.28
  4. Step 4: Simplify right side
    236,101.58x = 41,921,825,611.91
  5. Step 5: Solve for x
    x = 41,921,825,611.91/236,101.58
  6. Step 6: Final answer
    x = 177,558.43

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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.