Home / 93,400.20-140,100.30-86,183.10

Finding the Fourth Proportional to 93,400.20, 140,100.30 and 86,183.10

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Solution

The fourth proportional to 93,400.20, 140,100.30 and 86,183.10 is: 129,274.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,400.20 : 140,100.30 = 86,183.10 : x
  2. Step 2: Convert to fraction form
    93,400.20/140,100.30 = 86,183.10/x
  3. Step 3: Cross multiply
    93,400.20x = 140,100.30 × 86,183.10
  4. Step 4: Simplify right side
    93,400.20x = 12,074,278,164.93
  5. Step 5: Solve for x
    x = 12,074,278,164.93/93,400.20
  6. Step 6: Final answer
    x = 129,274.65

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1.5x scale

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.