Home / 214,765.56-296,383.25-128,696.18

Finding the Fourth Proportional to 214,765.56, 296,383.25 and 128,696.18

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Solution

The fourth proportional to 214,765.56, 296,383.25 and 128,696.18 is: 177,604.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,765.56 : 296,383.25 = 128,696.18 : x
  2. Step 2: Convert to fraction form
    214,765.56/296,383.25 = 128,696.18/x
  3. Step 3: Cross multiply
    214,765.56x = 296,383.25 × 128,696.18
  4. Step 4: Simplify right side
    214,765.56x = 38,143,390,930.81
  5. Step 5: Solve for x
    x = 38,143,390,930.81/214,765.56
  6. Step 6: Final answer
    x = 177,604.78

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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.