Home / 481,007.60-721,534.67-126,021.96

Finding the Fourth Proportional to 481,007.60, 721,534.67 and 126,021.96

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Solution

The fourth proportional to 481,007.60, 721,534.67 and 126,021.96 is: 189,039.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,007.60 : 721,534.67 = 126,021.96 : x
  2. Step 2: Convert to fraction form
    481,007.60/721,534.67 = 126,021.96/x
  3. Step 3: Cross multiply
    481,007.60x = 721,534.67 × 126,021.96
  4. Step 4: Simplify right side
    481,007.60x = 90,929,212,691.24
  5. Step 5: Solve for x
    x = 90,929,212,691.24/481,007.60
  6. Step 6: Final answer
    x = 189,039.04

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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.