Home / 236,076.09-325,784.52-128,645.87

Finding the Fourth Proportional to 236,076.09, 325,784.52 and 128,645.87

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Solution

The fourth proportional to 236,076.09, 325,784.52 and 128,645.87 is: 177,531.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,076.09 : 325,784.52 = 128,645.87 : x
  2. Step 2: Convert to fraction form
    236,076.09/325,784.52 = 128,645.87/x
  3. Step 3: Cross multiply
    236,076.09x = 325,784.52 × 128,645.87
  4. Step 4: Simplify right side
    236,076.09x = 41,910,833,030.64
  5. Step 5: Solve for x
    x = 41,910,833,030.64/236,076.09
  6. Step 6: Final answer
    x = 177,531.03

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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.