Home / 141,907.98-195,824.07-78,246.30

Finding the Fourth Proportional to 141,907.98, 195,824.07 and 78,246.30

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Solution

The fourth proportional to 141,907.98, 195,824.07 and 78,246.30 is: 107,974.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,907.98 : 195,824.07 = 78,246.30 : x
  2. Step 2: Convert to fraction form
    141,907.98/195,824.07 = 78,246.30/x
  3. Step 3: Cross multiply
    141,907.98x = 195,824.07 × 78,246.30
  4. Step 4: Simplify right side
    141,907.98x = 15,322,508,928.44
  5. Step 5: Solve for x
    x = 15,322,508,928.44/141,907.98
  6. Step 6: Final answer
    x = 107,974.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.