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Finding the Fourth Proportional to 143,633.88, 214,766.82 and 131,085.90

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Solution

The fourth proportional to 143,633.88, 214,766.82 and 131,085.90 is: 196,004.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,633.88 : 214,766.82 = 131,085.90 : x
  2. Step 2: Convert to fraction form
    143,633.88/214,766.82 = 131,085.90/x
  3. Step 3: Cross multiply
    143,633.88x = 214,766.82 × 131,085.90
  4. Step 4: Simplify right side
    143,633.88x = 28,152,901,889.84
  5. Step 5: Solve for x
    x = 28,152,901,889.84/143,633.88
  6. Step 6: Final answer
    x = 196,004.60

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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.