Home / 225,932.80-338,834.40-68,123.20

Finding the Fourth Proportional to 225,932.80, 338,834.40 and 68,123.20

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Solution

The fourth proportional to 225,932.80, 338,834.40 and 68,123.20 is: 102,165.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,932.80 : 338,834.40 = 68,123.20 : x
  2. Step 2: Convert to fraction form
    225,932.80/338,834.40 = 68,123.20/x
  3. Step 3: Cross multiply
    225,932.80x = 338,834.40 × 68,123.20
  4. Step 4: Simplify right side
    225,932.80x = 23,082,483,598.08
  5. Step 5: Solve for x
    x = 23,082,483,598.08/225,932.80
  6. Step 6: Final answer
    x = 102,165.26

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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.