Home / 279,628.38-419,504.84-102,135.10

Finding the Fourth Proportional to 279,628.38, 419,504.84 and 102,135.10

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Solution

The fourth proportional to 279,628.38, 419,504.84 and 102,135.10 is: 153,225.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,628.38 : 419,504.84 = 102,135.10 : x
  2. Step 2: Convert to fraction form
    279,628.38/419,504.84 = 102,135.10/x
  3. Step 3: Cross multiply
    279,628.38x = 419,504.84 × 102,135.10
  4. Step 4: Simplify right side
    279,628.38x = 42,846,168,783.88
  5. Step 5: Solve for x
    x = 42,846,168,783.88/279,628.38
  6. Step 6: Final answer
    x = 153,225.39

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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.