Home / 263,722.89-395,622.04-81,369.15

Finding the Fourth Proportional to 263,722.89, 395,622.04 and 81,369.15

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Solution

The fourth proportional to 263,722.89, 395,622.04 and 81,369.15 is: 122,065.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,722.89 : 395,622.04 = 81,369.15 : x
  2. Step 2: Convert to fraction form
    263,722.89/395,622.04 = 81,369.15/x
  3. Step 3: Cross multiply
    263,722.89x = 395,622.04 × 81,369.15
  4. Step 4: Simplify right side
    263,722.89x = 32,191,429,116.07
  5. Step 5: Solve for x
    x = 32,191,429,116.07/263,722.89
  6. Step 6: Final answer
    x = 122,065.36

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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.