Home / 263,723.40-395,622.80-81,369.65

Finding the Fourth Proportional to 263,723.40, 395,622.80 and 81,369.65

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Solution

The fourth proportional to 263,723.40, 395,622.80 and 81,369.65 is: 122,066.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,723.40 : 395,622.80 = 81,369.65 : x
  2. Step 2: Convert to fraction form
    263,723.40/395,622.80 = 81,369.65/x
  3. Step 3: Cross multiply
    263,723.40x = 395,622.80 × 81,369.65
  4. Step 4: Simplify right side
    263,723.40x = 32,191,686,383.06
  5. Step 5: Solve for x
    x = 32,191,686,383.06/263,723.40
  6. Step 6: Final answer
    x = 122,066.10

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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.