Home / 165,419.33-248,231.05-76,656.29

Finding the Fourth Proportional to 165,419.33, 248,231.05 and 76,656.29

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Solution

The fourth proportional to 165,419.33, 248,231.05 and 76,656.29 is: 115,031.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,419.33 : 248,231.05 = 76,656.29 : x
  2. Step 2: Convert to fraction form
    165,419.33/248,231.05 = 76,656.29/x
  3. Step 3: Cross multiply
    165,419.33x = 248,231.05 × 76,656.29
  4. Step 4: Simplify right side
    165,419.33x = 19,028,469,923.01
  5. Step 5: Solve for x
    x = 19,028,469,923.01/165,419.33
  6. Step 6: Final answer
    x = 115,031.72

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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.