Home / 196,190.74-270,752.13-115,621.66

Finding the Fourth Proportional to 196,190.74, 270,752.13 and 115,621.66

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Solution

The fourth proportional to 196,190.74, 270,752.13 and 115,621.66 is: 159,563.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,190.74 : 270,752.13 = 115,621.66 : x
  2. Step 2: Convert to fraction form
    196,190.74/270,752.13 = 115,621.66/x
  3. Step 3: Cross multiply
    196,190.74x = 270,752.13 × 115,621.66
  4. Step 4: Simplify right side
    196,190.74x = 31,304,810,719.14
  5. Step 5: Solve for x
    x = 31,304,810,719.14/196,190.74
  6. Step 6: Final answer
    x = 159,563.14

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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.