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Finding the Fourth Proportional to 148,692.63, 205,196.03 and 80,709.63

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Solution

The fourth proportional to 148,692.63, 205,196.03 and 80,709.63 is: 111,379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,692.63 : 205,196.03 = 80,709.63 : x
  2. Step 2: Convert to fraction form
    148,692.63/205,196.03 = 80,709.63/x
  3. Step 3: Cross multiply
    148,692.63x = 205,196.03 × 80,709.63
  4. Step 4: Simplify right side
    148,692.63x = 16,561,295,658.77
  5. Step 5: Solve for x
    x = 16,561,295,658.77/148,692.63
  6. Step 6: Final answer
    x = 111,379.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.