Home / 236,179.12-325,920.72-128,751.36

Finding the Fourth Proportional to 236,179.12, 325,920.72 and 128,751.36

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Solution

The fourth proportional to 236,179.12, 325,920.72 and 128,751.36 is: 177,673.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,179.12 : 325,920.72 = 128,751.36 : x
  2. Step 2: Convert to fraction form
    236,179.12/325,920.72 = 128,751.36/x
  3. Step 3: Cross multiply
    236,179.12x = 325,920.72 × 128,751.36
  4. Step 4: Simplify right side
    236,179.12x = 41,962,735,952.18
  5. Step 5: Solve for x
    x = 41,962,735,952.18/236,179.12
  6. Step 6: Final answer
    x = 177,673.35

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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.