Home / 107,821.20-161,760.60-96,214.80

Finding the Fourth Proportional to 107,821.20, 161,760.60 and 96,214.80

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Solution

The fourth proportional to 107,821.20, 161,760.60 and 96,214.80 is: 144,347.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,821.20 : 161,760.60 = 96,214.80 : x
  2. Step 2: Convert to fraction form
    107,821.20/161,760.60 = 96,214.80/x
  3. Step 3: Cross multiply
    107,821.20x = 161,760.60 × 96,214.80
  4. Step 4: Simplify right side
    107,821.20x = 15,563,763,776.88
  5. Step 5: Solve for x
    x = 15,563,763,776.88/107,821.20
  6. Step 6: Final answer
    x = 144,347.90

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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.