Home / 220,185.71-303,863.43-124,690.35

Finding the Fourth Proportional to 220,185.71, 303,863.43 and 124,690.35

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Solution

The fourth proportional to 220,185.71, 303,863.43 and 124,690.35 is: 172,076.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,185.71 : 303,863.43 = 124,690.35 : x
  2. Step 2: Convert to fraction form
    220,185.71/303,863.43 = 124,690.35/x
  3. Step 3: Cross multiply
    220,185.71x = 303,863.43 × 124,690.35
  4. Step 4: Simplify right side
    220,185.71x = 37,888,837,438.90
  5. Step 5: Solve for x
    x = 37,888,837,438.90/220,185.71
  6. Step 6: Final answer
    x = 172,076.73

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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.