Home / 121,824.28-168,132.94-68,112.47

Finding the Fourth Proportional to 121,824.28, 168,132.94 and 68,112.47

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Solution

The fourth proportional to 121,824.28, 168,132.94 and 68,112.47 is: 94,003.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,824.28 : 168,132.94 = 68,112.47 : x
  2. Step 2: Convert to fraction form
    121,824.28/168,132.94 = 68,112.47/x
  3. Step 3: Cross multiply
    121,824.28x = 168,132.94 × 68,112.47
  4. Step 4: Simplify right side
    121,824.28x = 11,451,949,831.76
  5. Step 5: Solve for x
    x = 11,451,949,831.76/121,824.28
  6. Step 6: Final answer
    x = 94,003.84

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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.