Home / 121,919.04-168,240.38-68,194.85

Finding the Fourth Proportional to 121,919.04, 168,240.38 and 68,194.85

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Solution

The fourth proportional to 121,919.04, 168,240.38 and 68,194.85 is: 94,104.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,919.04 : 168,240.38 = 68,194.85 : x
  2. Step 2: Convert to fraction form
    121,919.04/168,240.38 = 68,194.85/x
  3. Step 3: Cross multiply
    121,919.04x = 168,240.38 × 68,194.85
  4. Step 4: Simplify right side
    121,919.04x = 11,473,126,295.87
  5. Step 5: Solve for x
    x = 11,473,126,295.87/121,919.04
  6. Step 6: Final answer
    x = 94,104.47

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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.