Home / 213,231.29-320,001.26-83,419.23

Finding the Fourth Proportional to 213,231.29, 320,001.26 and 83,419.23

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Solution

The fourth proportional to 213,231.29, 320,001.26 and 83,419.23 is: 125,189.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,231.29 : 320,001.26 = 83,419.23 : x
  2. Step 2: Convert to fraction form
    213,231.29/320,001.26 = 83,419.23/x
  3. Step 3: Cross multiply
    213,231.29x = 320,001.26 × 83,419.23
  4. Step 4: Simplify right side
    213,231.29x = 26,694,258,708.23
  5. Step 5: Solve for x
    x = 26,694,258,708.23/213,231.29
  6. Step 6: Final answer
    x = 125,189.22

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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.