Home / 192,010.20-288,015.30-121,968.60

Finding the Fourth Proportional to 192,010.20, 288,015.30 and 121,968.60

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Solution

The fourth proportional to 192,010.20, 288,015.30 and 121,968.60 is: 182,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,010.20 : 288,015.30 = 121,968.60 : x
  2. Step 2: Convert to fraction form
    192,010.20/288,015.30 = 121,968.60/x
  3. Step 3: Cross multiply
    192,010.20x = 288,015.30 × 121,968.60
  4. Step 4: Simplify right side
    192,010.20x = 35,128,822,919.58
  5. Step 5: Solve for x
    x = 35,128,822,919.58/192,010.20
  6. Step 6: Final answer
    x = 182,952.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.