Home / 186,815.72-280,202.88-66,867.88

Finding the Fourth Proportional to 186,815.72, 280,202.88 and 66,867.88

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Solution

The fourth proportional to 186,815.72, 280,202.88 and 66,867.88 is: 100,294.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,815.72 : 280,202.88 = 66,867.88 : x
  2. Step 2: Convert to fraction form
    186,815.72/280,202.88 = 66,867.88/x
  3. Step 3: Cross multiply
    186,815.72x = 280,202.88 × 66,867.88
  4. Step 4: Simplify right side
    186,815.72x = 18,736,572,555.49
  5. Step 5: Solve for x
    x = 18,736,572,555.49/186,815.72
  6. Step 6: Final answer
    x = 100,294.41

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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.