Home / 186,780.10-280,206.60-74,441.20

Finding the Fourth Proportional to 186,780.10, 280,206.60 and 74,441.20

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Solution

The fourth proportional to 186,780.10, 280,206.60 and 74,441.20 is: 111,676.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,780.10 : 280,206.60 = 74,441.20 : x
  2. Step 2: Convert to fraction form
    186,780.10/280,206.60 = 74,441.20/x
  3. Step 3: Cross multiply
    186,780.10x = 280,206.60 × 74,441.20
  4. Step 4: Simplify right side
    186,780.10x = 20,858,915,551.92
  5. Step 5: Solve for x
    x = 20,858,915,551.92/186,780.10
  6. Step 6: Final answer
    x = 111,676.33

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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.