Home / 192,012.20-288,104.70-92,133.80

Finding the Fourth Proportional to 192,012.20, 288,104.70 and 92,133.80

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Solution

The fourth proportional to 192,012.20, 288,104.70 and 92,133.80 is: 138,242.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,012.20 : 288,104.70 = 92,133.80 : x
  2. Step 2: Convert to fraction form
    192,012.20/288,104.70 = 92,133.80/x
  3. Step 3: Cross multiply
    192,012.20x = 288,104.70 × 92,133.80
  4. Step 4: Simplify right side
    192,012.20x = 26,544,180,808.86
  5. Step 5: Solve for x
    x = 26,544,180,808.86/192,012.20
  6. Step 6: Final answer
    x = 138,242.16

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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.