Home / 148,676.12-205,173.24-80,693.09

Finding the Fourth Proportional to 148,676.12, 205,173.24 and 80,693.09

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Solution

The fourth proportional to 148,676.12, 205,173.24 and 80,693.09 is: 111,356.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,676.12 : 205,173.24 = 80,693.09 : x
  2. Step 2: Convert to fraction form
    148,676.12/205,173.24 = 80,693.09/x
  3. Step 3: Cross multiply
    148,676.12x = 205,173.24 × 80,693.09
  4. Step 4: Simplify right side
    148,676.12x = 16,556,061,695.05
  5. Step 5: Solve for x
    x = 16,556,061,695.05/148,676.12
  6. Step 6: Final answer
    x = 111,356.57

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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.