Home / 192,380.10-288,570.15-121,521.30

Finding the Fourth Proportional to 192,380.10, 288,570.15 and 121,521.30

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Solution

The fourth proportional to 192,380.10, 288,570.15 and 121,521.30 is: 182,281.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,380.10 : 288,570.15 = 121,521.30 : x
  2. Step 2: Convert to fraction form
    192,380.10/288,570.15 = 121,521.30/x
  3. Step 3: Cross multiply
    192,380.10x = 288,570.15 × 121,521.30
  4. Step 4: Simplify right side
    192,380.10x = 35,067,419,769.20
  5. Step 5: Solve for x
    x = 35,067,419,769.20/192,380.10
  6. Step 6: Final answer
    x = 182,281.95

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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.