Home / 165,074.49-227,292.72-128,921.97

Finding the Fourth Proportional to 165,074.49, 227,292.72 and 128,921.97

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Solution

The fourth proportional to 165,074.49, 227,292.72 and 128,921.97 is: 177,513.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,074.49 : 227,292.72 = 128,921.97 : x
  2. Step 2: Convert to fraction form
    165,074.49/227,292.72 = 128,921.97/x
  3. Step 3: Cross multiply
    165,074.49x = 227,292.72 × 128,921.97
  4. Step 4: Simplify right side
    165,074.49x = 29,303,025,229.06
  5. Step 5: Solve for x
    x = 29,303,025,229.06/165,074.49
  6. Step 6: Final answer
    x = 177,513.95

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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.