Home / 233,073.24-321,638.74-129,705.69

Finding the Fourth Proportional to 233,073.24, 321,638.74 and 129,705.69

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Solution

The fourth proportional to 233,073.24, 321,638.74 and 129,705.69 is: 178,992.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,073.24 : 321,638.74 = 129,705.69 : x
  2. Step 2: Convert to fraction form
    233,073.24/321,638.74 = 129,705.69/x
  3. Step 3: Cross multiply
    233,073.24x = 321,638.74 × 129,705.69
  4. Step 4: Simplify right side
    233,073.24x = 41,718,373,775.09
  5. Step 5: Solve for x
    x = 41,718,373,775.09/233,073.24
  6. Step 6: Final answer
    x = 178,992.55

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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.