Home / 210,174.30-315,556.70-107,665.29

Finding the Fourth Proportional to 210,174.30, 315,556.70 and 107,665.29

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Solution

The fourth proportional to 210,174.30, 315,556.70 and 107,665.29 is: 161,649.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,174.30 : 315,556.70 = 107,665.29 : x
  2. Step 2: Convert to fraction form
    210,174.30/315,556.70 = 107,665.29/x
  3. Step 3: Cross multiply
    210,174.30x = 315,556.70 × 107,665.29
  4. Step 4: Simplify right side
    210,174.30x = 33,974,503,078.62
  5. Step 5: Solve for x
    x = 33,974,503,078.62/210,174.30
  6. Step 6: Final answer
    x = 161,649.18

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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.