Home / 196,126.03-270,346.87-128,108.97

Finding the Fourth Proportional to 196,126.03, 270,346.87 and 128,108.97

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Solution

The fourth proportional to 196,126.03, 270,346.87 and 128,108.97 is: 176,589.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,126.03 : 270,346.87 = 128,108.97 : x
  2. Step 2: Convert to fraction form
    196,126.03/270,346.87 = 128,108.97/x
  3. Step 3: Cross multiply
    196,126.03x = 270,346.87 × 128,108.97
  4. Step 4: Simplify right side
    196,126.03x = 34,633,859,058.42
  5. Step 5: Solve for x
    x = 34,633,859,058.42/196,126.03
  6. Step 6: Final answer
    x = 176,589.81

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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.