Home / 186,021.06-278,862.84-67,608.78

Finding the Fourth Proportional to 186,021.06, 278,862.84 and 67,608.78

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Solution

The fourth proportional to 186,021.06, 278,862.84 and 67,608.78 is: 101,351.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,021.06 : 278,862.84 = 67,608.78 : x
  2. Step 2: Convert to fraction form
    186,021.06/278,862.84 = 67,608.78/x
  3. Step 3: Cross multiply
    186,021.06x = 278,862.84 × 67,608.78
  4. Step 4: Simplify right side
    186,021.06x = 18,853,576,399.74
  5. Step 5: Solve for x
    x = 18,853,576,399.74/186,021.06
  6. Step 6: Final answer
    x = 101,351.84

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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.