Home / 123,445.43-170,354.53-66,857.03

Finding the Fourth Proportional to 123,445.43, 170,354.53 and 66,857.03

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Solution

The fourth proportional to 123,445.43, 170,354.53 and 66,857.03 is: 92,262.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,445.43 : 170,354.53 = 66,857.03 : x
  2. Step 2: Convert to fraction form
    123,445.43/170,354.53 = 66,857.03/x
  3. Step 3: Cross multiply
    123,445.43x = 170,354.53 × 66,857.03
  4. Step 4: Simplify right side
    123,445.43x = 11,389,397,922.85
  5. Step 5: Solve for x
    x = 11,389,397,922.85/123,445.43
  6. Step 6: Final answer
    x = 92,262.61

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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.