Home / 186,789.45-280,183.22-72,948.81

Finding the Fourth Proportional to 186,789.45, 280,183.22 and 72,948.81

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Solution

The fourth proportional to 186,789.45, 280,183.22 and 72,948.81 is: 109,422.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,789.45 : 280,183.22 = 72,948.81 : x
  2. Step 2: Convert to fraction form
    186,789.45/280,183.22 = 72,948.81/x
  3. Step 3: Cross multiply
    186,789.45x = 280,183.22 × 72,948.81
  4. Step 4: Simplify right side
    186,789.45x = 20,439,032,480.97
  5. Step 5: Solve for x
    x = 20,439,032,480.97/186,789.45
  6. Step 6: Final answer
    x = 109,422.84

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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.