Home / 220,932.31-304,867.87-124,128.61

Finding the Fourth Proportional to 220,932.31, 304,867.87 and 124,128.61

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Solution

The fourth proportional to 220,932.31, 304,867.87 and 124,128.61 is: 171,286.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,932.31 : 304,867.87 = 124,128.61 : x
  2. Step 2: Convert to fraction form
    220,932.31/304,867.87 = 124,128.61/x
  3. Step 3: Cross multiply
    220,932.31x = 304,867.87 × 124,128.61
  4. Step 4: Simplify right side
    220,932.31x = 37,842,824,936.76
  5. Step 5: Solve for x
    x = 37,842,824,936.76/220,932.31
  6. Step 6: Final answer
    x = 171,286.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.