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Finding the Fourth Proportional to 141,692.86, 212,502.38 and 66,793.12

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Solution

The fourth proportional to 141,692.86, 212,502.38 and 66,793.12 is: 100,172.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,692.86 : 212,502.38 = 66,793.12 : x
  2. Step 2: Convert to fraction form
    141,692.86/212,502.38 = 66,793.12/x
  3. Step 3: Cross multiply
    141,692.86x = 212,502.38 × 66,793.12
  4. Step 4: Simplify right side
    141,692.86x = 14,193,695,571.15
  5. Step 5: Solve for x
    x = 14,193,695,571.15/141,692.86
  6. Step 6: Final answer
    x = 100,172.27

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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.