Home / 225,918.03-338,778.60-76,130.40

Finding the Fourth Proportional to 225,918.03, 338,778.60 and 76,130.40

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Solution

The fourth proportional to 225,918.03, 338,778.60 and 76,130.40 is: 114,162.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,918.03 : 338,778.60 = 76,130.40 : x
  2. Step 2: Convert to fraction form
    225,918.03/338,778.60 = 76,130.40/x
  3. Step 3: Cross multiply
    225,918.03x = 338,778.60 × 76,130.40
  4. Step 4: Simplify right side
    225,918.03x = 25,791,350,329.44
  5. Step 5: Solve for x
    x = 25,791,350,329.44/225,918.03
  6. Step 6: Final answer
    x = 114,162.43

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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.