Home / 257,150.09-385,694.42-67,625.22

Finding the Fourth Proportional to 257,150.09, 385,694.42 and 67,625.22

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Solution

The fourth proportional to 257,150.09, 385,694.42 and 67,625.22 is: 101,429.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,150.09 : 385,694.42 = 67,625.22 : x
  2. Step 2: Convert to fraction form
    257,150.09/385,694.42 = 67,625.22/x
  3. Step 3: Cross multiply
    257,150.09x = 385,694.42 × 67,625.22
  4. Step 4: Simplify right side
    257,150.09x = 26,082,669,667.15
  5. Step 5: Solve for x
    x = 26,082,669,667.15/257,150.09
  6. Step 6: Final answer
    x = 101,429.75

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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.