Home / 456,698.12-685,112.78-141,179.63

Finding the Fourth Proportional to 456,698.12, 685,112.78 and 141,179.63

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Solution

The fourth proportional to 456,698.12, 685,112.78 and 141,179.63 is: 211,789.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,698.12 : 685,112.78 = 141,179.63 : x
  2. Step 2: Convert to fraction form
    456,698.12/685,112.78 = 141,179.63/x
  3. Step 3: Cross multiply
    456,698.12x = 685,112.78 × 141,179.63
  4. Step 4: Simplify right side
    456,698.12x = 96,723,965,716.06
  5. Step 5: Solve for x
    x = 96,723,965,716.06/456,698.12
  6. Step 6: Final answer
    x = 211,789.72

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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.