Home / 172,013.94-257,628.07-82,119.88

Finding the Fourth Proportional to 172,013.94, 257,628.07 and 82,119.88

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Solution

The fourth proportional to 172,013.94, 257,628.07 and 82,119.88 is: 122,992.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,013.94 : 257,628.07 = 82,119.88 : x
  2. Step 2: Convert to fraction form
    172,013.94/257,628.07 = 82,119.88/x
  3. Step 3: Cross multiply
    172,013.94x = 257,628.07 × 82,119.88
  4. Step 4: Simplify right side
    172,013.94x = 21,156,386,193.03
  5. Step 5: Solve for x
    x = 21,156,386,193.03/172,013.94
  6. Step 6: Final answer
    x = 122,992.28

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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.