Home / 321,167.03-481,758.35-107,938.04

Finding the Fourth Proportional to 321,167.03, 481,758.35 and 107,938.04

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Solution

The fourth proportional to 321,167.03, 481,758.35 and 107,938.04 is: 161,909.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,167.03 : 481,758.35 = 107,938.04 : x
  2. Step 2: Convert to fraction form
    321,167.03/481,758.35 = 107,938.04/x
  3. Step 3: Cross multiply
    321,167.03x = 481,758.35 × 107,938.04
  4. Step 4: Simplify right side
    321,167.03x = 52,000,052,717.34
  5. Step 5: Solve for x
    x = 52,000,052,717.34/321,167.03
  6. Step 6: Final answer
    x = 161,909.68

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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.