Home / 196,016.68-270,403.31-128,073.43

Finding the Fourth Proportional to 196,016.68, 270,403.31 and 128,073.43

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Solution

The fourth proportional to 196,016.68, 270,403.31 and 128,073.43 is: 176,676.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,016.68 : 270,403.31 = 128,073.43 : x
  2. Step 2: Convert to fraction form
    196,016.68/270,403.31 = 128,073.43/x
  3. Step 3: Cross multiply
    196,016.68x = 270,403.31 × 128,073.43
  4. Step 4: Simplify right side
    196,016.68x = 34,631,479,395.05
  5. Step 5: Solve for x
    x = 34,631,479,395.05/196,016.68
  6. Step 6: Final answer
    x = 176,676.19

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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.