Home / 172,090.24-258,135.04-66,983.04

Finding the Fourth Proportional to 172,090.24, 258,135.04 and 66,983.04

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Solution

The fourth proportional to 172,090.24, 258,135.04 and 66,983.04 is: 100,474.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,090.24 : 258,135.04 = 66,983.04 : x
  2. Step 2: Convert to fraction form
    172,090.24/258,135.04 = 66,983.04/x
  3. Step 3: Cross multiply
    172,090.24x = 258,135.04 × 66,983.04
  4. Step 4: Simplify right side
    172,090.24x = 17,290,669,709.72
  5. Step 5: Solve for x
    x = 17,290,669,709.72/172,090.24
  6. Step 6: Final answer
    x = 100,474.44

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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.