Home / 231,880.92-320,003.58-129,910.68

Finding the Fourth Proportional to 231,880.92, 320,003.58 and 129,910.68

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Solution

The fourth proportional to 231,880.92, 320,003.58 and 129,910.68 is: 179,281.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,880.92 : 320,003.58 = 129,910.68 : x
  2. Step 2: Convert to fraction form
    231,880.92/320,003.58 = 129,910.68/x
  3. Step 3: Cross multiply
    231,880.92x = 320,003.58 × 129,910.68
  4. Step 4: Simplify right side
    231,880.92x = 41,571,882,680.23
  5. Step 5: Solve for x
    x = 41,571,882,680.23/231,880.92
  6. Step 6: Final answer
    x = 179,281.17

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1.5x scale

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.