Home / 196,215.92-270,745.40-115,632.51

Finding the Fourth Proportional to 196,215.92, 270,745.40 and 115,632.51

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Solution

The fourth proportional to 196,215.92, 270,745.40 and 115,632.51 is: 159,553.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,215.92 : 270,745.40 = 115,632.51 : x
  2. Step 2: Convert to fraction form
    196,215.92/270,745.40 = 115,632.51/x
  3. Step 3: Cross multiply
    196,215.92x = 270,745.40 × 115,632.51
  4. Step 4: Simplify right side
    196,215.92x = 31,306,970,172.95
  5. Step 5: Solve for x
    x = 31,306,970,172.95/196,215.92
  6. Step 6: Final answer
    x = 159,553.67

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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.