Home / 149,640.39-206,336.30-122,331.24

Finding the Fourth Proportional to 149,640.39, 206,336.30 and 122,331.24

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Solution

The fourth proportional to 149,640.39, 206,336.30 and 122,331.24 is: 168,680.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,640.39 : 206,336.30 = 122,331.24 : x
  2. Step 2: Convert to fraction form
    149,640.39/206,336.30 = 122,331.24/x
  3. Step 3: Cross multiply
    149,640.39x = 206,336.30 × 122,331.24
  4. Step 4: Simplify right side
    149,640.39x = 25,241,374,824.36
  5. Step 5: Solve for x
    x = 25,241,374,824.36/149,640.39
  6. Step 6: Final answer
    x = 168,680.23

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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.