Home / 129,817.80-194,743.56-45,571.92

Finding the Fourth Proportional to 129,817.80, 194,743.56 and 45,571.92

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Solution

The fourth proportional to 129,817.80, 194,743.56 and 45,571.92 is: 68,363.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,817.80 : 194,743.56 = 45,571.92 : x
  2. Step 2: Convert to fraction form
    129,817.80/194,743.56 = 45,571.92/x
  3. Step 3: Cross multiply
    129,817.80x = 194,743.56 × 45,571.92
  4. Step 4: Simplify right side
    129,817.80x = 8,874,837,936.84
  5. Step 5: Solve for x
    x = 8,874,837,936.84/129,817.80
  6. Step 6: Final answer
    x = 68,363.80

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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.