Home / 186,965.75-280,449.09-74,655.11

Finding the Fourth Proportional to 186,965.75, 280,449.09 and 74,655.11

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Solution

The fourth proportional to 186,965.75, 280,449.09 and 74,655.11 is: 111,982.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,965.75 : 280,449.09 = 74,655.11 : x
  2. Step 2: Convert to fraction form
    186,965.75/280,449.09 = 74,655.11/x
  3. Step 3: Cross multiply
    186,965.75x = 280,449.09 × 74,655.11
  4. Step 4: Simplify right side
    186,965.75x = 20,936,958,364.47
  5. Step 5: Solve for x
    x = 20,936,958,364.47/186,965.75
  6. Step 6: Final answer
    x = 111,982.85

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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.