Home / 186,849.92-257,785.40-143,842.56

Finding the Fourth Proportional to 186,849.92, 257,785.40 and 143,842.56

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Solution

The fourth proportional to 186,849.92, 257,785.40 and 143,842.56 is: 198,450.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,849.92 : 257,785.40 = 143,842.56 : x
  2. Step 2: Convert to fraction form
    186,849.92/257,785.40 = 143,842.56/x
  3. Step 3: Cross multiply
    186,849.92x = 257,785.40 × 143,842.56
  4. Step 4: Simplify right side
    186,849.92x = 37,080,511,866.62
  5. Step 5: Solve for x
    x = 37,080,511,866.62/186,849.92
  6. Step 6: Final answer
    x = 198,450.78

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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.