Home / 196,430.38-271,061.16-115,839.43

Finding the Fourth Proportional to 196,430.38, 271,061.16 and 115,839.43

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Solution

The fourth proportional to 196,430.38, 271,061.16 and 115,839.43 is: 159,850.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,430.38 : 271,061.16 = 115,839.43 : x
  2. Step 2: Convert to fraction form
    196,430.38/271,061.16 = 115,839.43/x
  3. Step 3: Cross multiply
    196,430.38x = 271,061.16 × 115,839.43
  4. Step 4: Simplify right side
    196,430.38x = 31,399,570,269.54
  5. Step 5: Solve for x
    x = 31,399,570,269.54/196,430.38
  6. Step 6: Final answer
    x = 159,850.89

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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.