Home / 102,183.28-140,996.68-56,861.12

Finding the Fourth Proportional to 102,183.28, 140,996.68 and 56,861.12

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Solution

The fourth proportional to 102,183.28, 140,996.68 and 56,861.12 is: 78,459.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,183.28 : 140,996.68 = 56,861.12 : x
  2. Step 2: Convert to fraction form
    102,183.28/140,996.68 = 56,861.12/x
  3. Step 3: Cross multiply
    102,183.28x = 140,996.68 × 56,861.12
  4. Step 4: Simplify right side
    102,183.28x = 8,017,229,351.42
  5. Step 5: Solve for x
    x = 8,017,229,351.42/102,183.28
  6. Step 6: Final answer
    x = 78,459.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.