Home / 196,189.74-270,750.75-115,620.66

Finding the Fourth Proportional to 196,189.74, 270,750.75 and 115,620.66

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Solution

The fourth proportional to 196,189.74, 270,750.75 and 115,620.66 is: 159,561.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,189.74 : 270,750.75 = 115,620.66 : x
  2. Step 2: Convert to fraction form
    196,189.74/270,750.75 = 115,620.66/x
  3. Step 3: Cross multiply
    196,189.74x = 270,750.75 × 115,620.66
  4. Step 4: Simplify right side
    196,189.74x = 31,304,380,410.50
  5. Step 5: Solve for x
    x = 31,304,380,410.50/196,189.74
  6. Step 6: Final answer
    x = 159,561.76

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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.