Home / 136,922.60-188,946.41-76,481.20

Finding the Fourth Proportional to 136,922.60, 188,946.41 and 76,481.20

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Solution

The fourth proportional to 136,922.60, 188,946.41 and 76,481.20 is: 105,540.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,922.60 : 188,946.41 = 76,481.20 : x
  2. Step 2: Convert to fraction form
    136,922.60/188,946.41 = 76,481.20/x
  3. Step 3: Cross multiply
    136,922.60x = 188,946.41 × 76,481.20
  4. Step 4: Simplify right side
    136,922.60x = 14,450,848,172.49
  5. Step 5: Solve for x
    x = 14,450,848,172.49/136,922.60
  6. Step 6: Final answer
    x = 105,540.27

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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.