Home / 235,786.26-325,385.07-128,357.10

Finding the Fourth Proportional to 235,786.26, 325,385.07 and 128,357.10

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Solution

The fourth proportional to 235,786.26, 325,385.07 and 128,357.10 is: 177,132.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,786.26 : 325,385.07 = 128,357.10 : x
  2. Step 2: Convert to fraction form
    235,786.26/325,385.07 = 128,357.10/x
  3. Step 3: Cross multiply
    235,786.26x = 325,385.07 × 128,357.10
  4. Step 4: Simplify right side
    235,786.26x = 41,765,483,968.50
  5. Step 5: Solve for x
    x = 41,765,483,968.50/235,786.26
  6. Step 6: Final answer
    x = 177,132.81

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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.