Home / 424,090.03-636,134.64-108,546.43

Finding the Fourth Proportional to 424,090.03, 636,134.64 and 108,546.43

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Solution

The fourth proportional to 424,090.03, 636,134.64 and 108,546.43 is: 162,819.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,090.03 : 636,134.64 = 108,546.43 : x
  2. Step 2: Convert to fraction form
    424,090.03/636,134.64 = 108,546.43/x
  3. Step 3: Cross multiply
    424,090.03x = 636,134.64 × 108,546.43
  4. Step 4: Simplify right side
    424,090.03x = 69,050,144,171.34
  5. Step 5: Solve for x
    x = 69,050,144,171.34/424,090.03
  6. Step 6: Final answer
    x = 162,819.54

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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.