Home / 172,579.42-258,912.26-137,174.32

Finding the Fourth Proportional to 172,579.42, 258,912.26 and 137,174.32

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Solution

The fourth proportional to 172,579.42, 258,912.26 and 137,174.32 is: 205,795.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,579.42 : 258,912.26 = 137,174.32 : x
  2. Step 2: Convert to fraction form
    172,579.42/258,912.26 = 137,174.32/x
  3. Step 3: Cross multiply
    172,579.42x = 258,912.26 × 137,174.32
  4. Step 4: Simplify right side
    172,579.42x = 35,516,113,205.16
  5. Step 5: Solve for x
    x = 35,516,113,205.16/172,579.42
  6. Step 6: Final answer
    x = 205,795.76

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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.