Home / 172,126.41-258,179.58-77,332.11

Finding the Fourth Proportional to 172,126.41, 258,179.58 and 77,332.11

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Solution

The fourth proportional to 172,126.41, 258,179.58 and 77,332.11 is: 115,993.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,126.41 : 258,179.58 = 77,332.11 : x
  2. Step 2: Convert to fraction form
    172,126.41/258,179.58 = 77,332.11/x
  3. Step 3: Cross multiply
    172,126.41x = 258,179.58 × 77,332.11
  4. Step 4: Simplify right side
    172,126.41x = 19,965,571,680.31
  5. Step 5: Solve for x
    x = 19,965,571,680.31/172,126.41
  6. Step 6: Final answer
    x = 115,993.66

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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.