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Finding the Fourth Proportional to 141,469.83, 212,201.64 and 66,548.43

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Solution

The fourth proportional to 141,469.83, 212,201.64 and 66,548.43 is: 99,821.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,469.83 : 212,201.64 = 66,548.43 : x
  2. Step 2: Convert to fraction form
    141,469.83/212,201.64 = 66,548.43/x
  3. Step 3: Cross multiply
    141,469.83x = 212,201.64 × 66,548.43
  4. Step 4: Simplify right side
    141,469.83x = 14,121,685,985.43
  5. Step 5: Solve for x
    x = 14,121,685,985.43/141,469.83
  6. Step 6: Final answer
    x = 99,821.18

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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.