Home / 121,799.60-168,084.36-68,086.80

Finding the Fourth Proportional to 121,799.60, 168,084.36 and 68,086.80

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Solution

The fourth proportional to 121,799.60, 168,084.36 and 68,086.80 is: 93,960.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,799.60 : 168,084.36 = 68,086.80 : x
  2. Step 2: Convert to fraction form
    121,799.60/168,084.36 = 68,086.80/x
  3. Step 3: Cross multiply
    121,799.60x = 168,084.36 × 68,086.80
  4. Step 4: Simplify right side
    121,799.60x = 11,444,326,202.45
  5. Step 5: Solve for x
    x = 11,444,326,202.45/121,799.60
  6. Step 6: Final answer
    x = 93,960.29

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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.