Home / 141,983.75-195,922.44-78,321.55

Finding the Fourth Proportional to 141,983.75, 195,922.44 and 78,321.55

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Solution

The fourth proportional to 141,983.75, 195,922.44 and 78,321.55 is: 108,075.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,983.75 : 195,922.44 = 78,321.55 : x
  2. Step 2: Convert to fraction form
    141,983.75/195,922.44 = 78,321.55/x
  3. Step 3: Cross multiply
    141,983.75x = 195,922.44 × 78,321.55
  4. Step 4: Simplify right side
    141,983.75x = 15,344,949,180.58
  5. Step 5: Solve for x
    x = 15,344,949,180.58/141,983.75
  6. Step 6: Final answer
    x = 108,075.39

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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.