Home / 233,003.49-321,546.66-129,639.18

Finding the Fourth Proportional to 233,003.49, 321,546.66 and 129,639.18

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Solution

The fourth proportional to 233,003.49, 321,546.66 and 129,639.18 is: 178,903.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,003.49 : 321,546.66 = 129,639.18 : x
  2. Step 2: Convert to fraction form
    233,003.49/321,546.66 = 129,639.18/x
  3. Step 3: Cross multiply
    233,003.49x = 321,546.66 × 129,639.18
  4. Step 4: Simplify right side
    233,003.49x = 41,685,046,783.01
  5. Step 5: Solve for x
    x = 41,685,046,783.01/233,003.49
  6. Step 6: Final answer
    x = 178,903.10

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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.