Home / 196,428.38-271,058.40-115,837.43

Finding the Fourth Proportional to 196,428.38, 271,058.40 and 115,837.43

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Solution

The fourth proportional to 196,428.38, 271,058.40 and 115,837.43 is: 159,848.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,428.38 : 271,058.40 = 115,837.43 : x
  2. Step 2: Convert to fraction form
    196,428.38/271,058.40 = 115,837.43/x
  3. Step 3: Cross multiply
    196,428.38x = 271,058.40 × 115,837.43
  4. Step 4: Simplify right side
    196,428.38x = 31,398,707,080.62
  5. Step 5: Solve for x
    x = 31,398,707,080.62/196,428.38
  6. Step 6: Final answer
    x = 159,848.12

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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.