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Finding the Fourth Proportional to 131,751.30, 197,166.15 and 120,692.10

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Solution

The fourth proportional to 131,751.30, 197,166.15 and 120,692.10 is: 180,616.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,751.30 : 197,166.15 = 120,692.10 : x
  2. Step 2: Convert to fraction form
    131,751.30/197,166.15 = 120,692.10/x
  3. Step 3: Cross multiply
    131,751.30x = 197,166.15 × 120,692.10
  4. Step 4: Simplify right side
    131,751.30x = 23,796,396,692.42
  5. Step 5: Solve for x
    x = 23,796,396,692.42/131,751.30
  6. Step 6: Final answer
    x = 180,616.03

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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.