Home / 190,078.25-262,279.75-115,447.88

Finding the Fourth Proportional to 190,078.25, 262,279.75 and 115,447.88

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Solution

The fourth proportional to 190,078.25, 262,279.75 and 115,447.88 is: 159,300.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,078.25 : 262,279.75 = 115,447.88 : x
  2. Step 2: Convert to fraction form
    190,078.25/262,279.75 = 115,447.88/x
  3. Step 3: Cross multiply
    190,078.25x = 262,279.75 × 115,447.88
  4. Step 4: Simplify right side
    190,078.25x = 30,279,641,104.43
  5. Step 5: Solve for x
    x = 30,279,641,104.43/190,078.25
  6. Step 6: Final answer
    x = 159,300.93

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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.