Home / 192,743.42-288,959.30-80,509.62

Finding the Fourth Proportional to 192,743.42, 288,959.30 and 80,509.62

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Solution

The fourth proportional to 192,743.42, 288,959.30 and 80,509.62 is: 120,699.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,743.42 : 288,959.30 = 80,509.62 : x
  2. Step 2: Convert to fraction form
    192,743.42/288,959.30 = 80,509.62/x
  3. Step 3: Cross multiply
    192,743.42x = 288,959.30 × 80,509.62
  4. Step 4: Simplify right side
    192,743.42x = 23,264,003,438.47
  5. Step 5: Solve for x
    x = 23,264,003,438.47/192,743.42
  6. Step 6: Final answer
    x = 120,699.34

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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.