Home / 194,936.80-292,405.20-84,128.80

Finding the Fourth Proportional to 194,936.80, 292,405.20 and 84,128.80

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Solution

The fourth proportional to 194,936.80, 292,405.20 and 84,128.80 is: 126,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,936.80 : 292,405.20 = 84,128.80 : x
  2. Step 2: Convert to fraction form
    194,936.80/292,405.20 = 84,128.80/x
  3. Step 3: Cross multiply
    194,936.80x = 292,405.20 × 84,128.80
  4. Step 4: Simplify right side
    194,936.80x = 24,599,698,589.76
  5. Step 5: Solve for x
    x = 24,599,698,589.76/194,936.80
  6. Step 6: Final answer
    x = 126,193.20

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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.