Home / 172,979.46-259,480.12-73,126.51

Finding the Fourth Proportional to 172,979.46, 259,480.12 and 73,126.51

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Solution

The fourth proportional to 172,979.46, 259,480.12 and 73,126.51 is: 109,694.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,979.46 : 259,480.12 = 73,126.51 : x
  2. Step 2: Convert to fraction form
    172,979.46/259,480.12 = 73,126.51/x
  3. Step 3: Cross multiply
    172,979.46x = 259,480.12 × 73,126.51
  4. Step 4: Simplify right side
    172,979.46x = 18,974,875,589.98
  5. Step 5: Solve for x
    x = 18,974,875,589.98/172,979.46
  6. Step 6: Final answer
    x = 109,694.39

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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.