Home / 121,933.62-168,274.94-68,215.44

Finding the Fourth Proportional to 121,933.62, 168,274.94 and 68,215.44

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Solution

The fourth proportional to 121,933.62, 168,274.94 and 68,215.44 is: 94,140.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,933.62 : 168,274.94 = 68,215.44 : x
  2. Step 2: Convert to fraction form
    121,933.62/168,274.94 = 68,215.44/x
  3. Step 3: Cross multiply
    121,933.62x = 168,274.94 × 68,215.44
  4. Step 4: Simplify right side
    121,933.62x = 11,478,949,073.07
  5. Step 5: Solve for x
    x = 11,478,949,073.07/121,933.62
  6. Step 6: Final answer
    x = 94,140.97

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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.