Home / 194,786.20-292,179.30-76,461.40

Finding the Fourth Proportional to 194,786.20, 292,179.30 and 76,461.40

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Solution

The fourth proportional to 194,786.20, 292,179.30 and 76,461.40 is: 114,692.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,786.20 : 292,179.30 = 76,461.40 : x
  2. Step 2: Convert to fraction form
    194,786.20/292,179.30 = 76,461.40/x
  3. Step 3: Cross multiply
    194,786.20x = 292,179.30 × 76,461.40
  4. Step 4: Simplify right side
    194,786.20x = 22,340,438,329.02
  5. Step 5: Solve for x
    x = 22,340,438,329.02/194,786.20
  6. Step 6: Final answer
    x = 114,692.10

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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.