Home / 186,394.88-279,391.20-91,514.72

Finding the Fourth Proportional to 186,394.88, 279,391.20 and 91,514.72

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Solution

The fourth proportional to 186,394.88, 279,391.20 and 91,514.72 is: 137,173.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,394.88 : 279,391.20 = 91,514.72 : x
  2. Step 2: Convert to fraction form
    186,394.88/279,391.20 = 91,514.72/x
  3. Step 3: Cross multiply
    186,394.88x = 279,391.20 × 91,514.72
  4. Step 4: Simplify right side
    186,394.88x = 25,568,407,438.46
  5. Step 5: Solve for x
    x = 25,568,407,438.46/186,394.88
  6. Step 6: Final answer
    x = 137,173.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.