Home / 268,744.74-403,175.42-81,751.38

Finding the Fourth Proportional to 268,744.74, 403,175.42 and 81,751.38

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Solution

The fourth proportional to 268,744.74, 403,175.42 and 81,751.38 is: 122,644.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,744.74 : 403,175.42 = 81,751.38 : x
  2. Step 2: Convert to fraction form
    268,744.74/403,175.42 = 81,751.38/x
  3. Step 3: Cross multiply
    268,744.74x = 403,175.42 × 81,751.38
  4. Step 4: Simplify right side
    268,744.74x = 32,960,146,967.08
  5. Step 5: Solve for x
    x = 32,960,146,967.08/268,744.74
  6. Step 6: Final answer
    x = 122,644.81

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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.