Home / 121,936.70-168,330.17-91,733.52

Finding the Fourth Proportional to 121,936.70, 168,330.17 and 91,733.52

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Solution

The fourth proportional to 121,936.70, 168,330.17 and 91,733.52 is: 126,635.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,936.70 : 168,330.17 = 91,733.52 : x
  2. Step 2: Convert to fraction form
    121,936.70/168,330.17 = 91,733.52/x
  3. Step 3: Cross multiply
    121,936.70x = 168,330.17 × 91,733.52
  4. Step 4: Simplify right side
    121,936.70x = 15,441,519,016.30
  5. Step 5: Solve for x
    x = 15,441,519,016.30/121,936.70
  6. Step 6: Final answer
    x = 126,635.53

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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.