Home / 231,971.72-320,110.26-131,370.44

Finding the Fourth Proportional to 231,971.72, 320,110.26 and 131,370.44

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Solution

The fourth proportional to 231,971.72, 320,110.26 and 131,370.44 is: 181,285.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,971.72 : 320,110.26 = 131,370.44 : x
  2. Step 2: Convert to fraction form
    231,971.72/320,110.26 = 131,370.44/x
  3. Step 3: Cross multiply
    231,971.72x = 320,110.26 × 131,370.44
  4. Step 4: Simplify right side
    231,971.72x = 42,053,025,704.71
  5. Step 5: Solve for x
    x = 42,053,025,704.71/231,971.72
  6. Step 6: Final answer
    x = 181,285.14

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1.5x scale

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.