Home / 186,964.79-258,135.14-115,449.89

Finding the Fourth Proportional to 186,964.79, 258,135.14 and 115,449.89

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Solution

The fourth proportional to 186,964.79, 258,135.14 and 115,449.89 is: 159,397.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,964.79 : 258,135.14 = 115,449.89 : x
  2. Step 2: Convert to fraction form
    186,964.79/258,135.14 = 115,449.89/x
  3. Step 3: Cross multiply
    186,964.79x = 258,135.14 × 115,449.89
  4. Step 4: Simplify right side
    186,964.79x = 29,801,672,940.89
  5. Step 5: Solve for x
    x = 29,801,672,940.89/186,964.79
  6. Step 6: Final answer
    x = 159,397.25

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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.