Home / 202,353.10-279,245.75-111,709.10

Finding the Fourth Proportional to 202,353.10, 279,245.75 and 111,709.10

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Solution

The fourth proportional to 202,353.10, 279,245.75 and 111,709.10 is: 154,157.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,353.10 : 279,245.75 = 111,709.10 : x
  2. Step 2: Convert to fraction form
    202,353.10/279,245.75 = 111,709.10/x
  3. Step 3: Cross multiply
    202,353.10x = 279,245.75 × 111,709.10
  4. Step 4: Simplify right side
    202,353.10x = 31,194,291,411.33
  5. Step 5: Solve for x
    x = 31,194,291,411.33/202,353.10
  6. Step 6: Final answer
    x = 154,157.71

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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.