Home / 110,692.20-166,038.30-102,138.60

Finding the Fourth Proportional to 110,692.20, 166,038.30 and 102,138.60

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Solution

The fourth proportional to 110,692.20, 166,038.30 and 102,138.60 is: 153,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,692.20 : 166,038.30 = 102,138.60 : x
  2. Step 2: Convert to fraction form
    110,692.20/166,038.30 = 102,138.60/x
  3. Step 3: Cross multiply
    110,692.20x = 166,038.30 × 102,138.60
  4. Step 4: Simplify right side
    110,692.20x = 16,958,919,508.38
  5. Step 5: Solve for x
    x = 16,958,919,508.38/110,692.20
  6. Step 6: Final answer
    x = 153,207.90

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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.