Home / 279,629.38-419,506.34-102,136.10

Finding the Fourth Proportional to 279,629.38, 419,506.34 and 102,136.10

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Solution

The fourth proportional to 279,629.38, 419,506.34 and 102,136.10 is: 153,226.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,629.38 : 419,506.34 = 102,136.10 : x
  2. Step 2: Convert to fraction form
    279,629.38/419,506.34 = 102,136.10/x
  3. Step 3: Cross multiply
    279,629.38x = 419,506.34 × 102,136.10
  4. Step 4: Simplify right side
    279,629.38x = 42,846,741,492.87
  5. Step 5: Solve for x
    x = 42,846,741,492.87/279,629.38
  6. Step 6: Final answer
    x = 153,226.89

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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.