Home / 231,996.51-320,177.66-130,039.29

Finding the Fourth Proportional to 231,996.51, 320,177.66 and 130,039.29

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Solution

The fourth proportional to 231,996.51, 320,177.66 and 130,039.29 is: 179,466.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,996.51 : 320,177.66 = 130,039.29 : x
  2. Step 2: Convert to fraction form
    231,996.51/320,177.66 = 130,039.29/x
  3. Step 3: Cross multiply
    231,996.51x = 320,177.66 × 130,039.29
  4. Step 4: Simplify right side
    231,996.51x = 41,635,674,930.07
  5. Step 5: Solve for x
    x = 41,635,674,930.07/231,996.51
  6. Step 6: Final answer
    x = 179,466.82

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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.