Home / 126,674.82-174,736.17-78,918.84

Finding the Fourth Proportional to 126,674.82, 174,736.17 and 78,918.84

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Solution

The fourth proportional to 126,674.82, 174,736.17 and 78,918.84 is: 108,861.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,674.82 : 174,736.17 = 78,918.84 : x
  2. Step 2: Convert to fraction form
    126,674.82/174,736.17 = 78,918.84/x
  3. Step 3: Cross multiply
    126,674.82x = 174,736.17 × 78,918.84
  4. Step 4: Simplify right side
    126,674.82x = 13,789,975,842.44
  5. Step 5: Solve for x
    x = 13,789,975,842.44/126,674.82
  6. Step 6: Final answer
    x = 108,861.22

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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.