Home / 192,664.20-288,996.30-121,805.40

Finding the Fourth Proportional to 192,664.20, 288,996.30 and 121,805.40

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Solution

The fourth proportional to 192,664.20, 288,996.30 and 121,805.40 is: 182,708.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,664.20 : 288,996.30 = 121,805.40 : x
  2. Step 2: Convert to fraction form
    192,664.20/288,996.30 = 121,805.40/x
  3. Step 3: Cross multiply
    192,664.20x = 288,996.30 × 121,805.40
  4. Step 4: Simplify right side
    192,664.20x = 35,201,309,920.02
  5. Step 5: Solve for x
    x = 35,201,309,920.02/192,664.20
  6. Step 6: Final answer
    x = 182,708.10

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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.