Home / 148,739.43-205,261.92-80,757.03

Finding the Fourth Proportional to 148,739.43, 205,261.92 and 80,757.03

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Solution

The fourth proportional to 148,739.43, 205,261.92 and 80,757.03 is: 111,445.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,739.43 : 205,261.92 = 80,757.03 : x
  2. Step 2: Convert to fraction form
    148,739.43/205,261.92 = 80,757.03/x
  3. Step 3: Cross multiply
    148,739.43x = 205,261.92 × 80,757.03
  4. Step 4: Simplify right side
    148,739.43x = 16,576,343,031.30
  5. Step 5: Solve for x
    x = 16,576,343,031.30/148,739.43
  6. Step 6: Final answer
    x = 111,445.52

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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.