Home / 235,968.49-325,626.51-128,539.36

Finding the Fourth Proportional to 235,968.49, 325,626.51 and 128,539.36

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Solution

The fourth proportional to 235,968.49, 325,626.51 and 128,539.36 is: 177,378.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,968.49 : 325,626.51 = 128,539.36 : x
  2. Step 2: Convert to fraction form
    235,968.49/325,626.51 = 128,539.36/x
  3. Step 3: Cross multiply
    235,968.49x = 325,626.51 × 128,539.36
  4. Step 4: Simplify right side
    235,968.49x = 41,855,823,194.43
  5. Step 5: Solve for x
    x = 41,855,823,194.43/235,968.49
  6. Step 6: Final answer
    x = 177,378.87

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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.