Home / 432,022.55-648,143.24-132,518.43

Finding the Fourth Proportional to 432,022.55, 648,143.24 and 132,518.43

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Solution

The fourth proportional to 432,022.55, 648,143.24 and 132,518.43 is: 198,811.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,022.55 : 648,143.24 = 132,518.43 : x
  2. Step 2: Convert to fraction form
    432,022.55/648,143.24 = 132,518.43/x
  3. Step 3: Cross multiply
    432,022.55x = 648,143.24 × 132,518.43
  4. Step 4: Simplify right side
    432,022.55x = 85,890,923,917.32
  5. Step 5: Solve for x
    x = 85,890,923,917.32/432,022.55
  6. Step 6: Final answer
    x = 198,811.21

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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.