Home / 220,836.98-304,730.78-124,021.20

Finding the Fourth Proportional to 220,836.98, 304,730.78 and 124,021.20

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Solution

The fourth proportional to 220,836.98, 304,730.78 and 124,021.20 is: 171,135.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,836.98 : 304,730.78 = 124,021.20 : x
  2. Step 2: Convert to fraction form
    220,836.98/304,730.78 = 124,021.20/x
  3. Step 3: Cross multiply
    220,836.98x = 304,730.78 × 124,021.20
  4. Step 4: Simplify right side
    220,836.98x = 37,793,077,012.54
  5. Step 5: Solve for x
    x = 37,793,077,012.54/220,836.98
  6. Step 6: Final answer
    x = 171,135.64

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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.