Home / 121,910.04-168,243.39-68,198.67

Finding the Fourth Proportional to 121,910.04, 168,243.39 and 68,198.67

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Solution

The fourth proportional to 121,910.04, 168,243.39 and 68,198.67 is: 94,118.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,910.04 : 168,243.39 = 68,198.67 : x
  2. Step 2: Convert to fraction form
    121,910.04/168,243.39 = 68,198.67/x
  3. Step 3: Cross multiply
    121,910.04x = 168,243.39 × 68,198.67
  4. Step 4: Simplify right side
    121,910.04x = 11,473,975,434.29
  5. Step 5: Solve for x
    x = 11,473,975,434.29/121,910.04
  6. Step 6: Final answer
    x = 94,118.38

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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.