Home / 194,837.40-292,183.20-68,428.80

Finding the Fourth Proportional to 194,837.40, 292,183.20 and 68,428.80

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Solution

The fourth proportional to 194,837.40, 292,183.20 and 68,428.80 is: 102,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,837.40 : 292,183.20 = 68,428.80 : x
  2. Step 2: Convert to fraction form
    194,837.40/292,183.20 = 68,428.80/x
  3. Step 3: Cross multiply
    194,837.40x = 292,183.20 × 68,428.80
  4. Step 4: Simplify right side
    194,837.40x = 19,993,745,756.16
  5. Step 5: Solve for x
    x = 19,993,745,756.16/194,837.40
  6. Step 6: Final answer
    x = 102,617.60

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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.