Home / 281,780.07-422,734.92-92,246.55

Finding the Fourth Proportional to 281,780.07, 422,734.92 and 92,246.55

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Solution

The fourth proportional to 281,780.07, 422,734.92 and 92,246.55 is: 138,391.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,780.07 : 422,734.92 = 92,246.55 : x
  2. Step 2: Convert to fraction form
    281,780.07/422,734.92 = 92,246.55/x
  3. Step 3: Cross multiply
    281,780.07x = 422,734.92 × 92,246.55
  4. Step 4: Simplify right side
    281,780.07x = 38,995,837,934.53
  5. Step 5: Solve for x
    x = 38,995,837,934.53/281,780.07
  6. Step 6: Final answer
    x = 138,391.04

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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.