Home / 139,682.28-192,761.16-76,020.12

Finding the Fourth Proportional to 139,682.28, 192,761.16 and 76,020.12

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Solution

The fourth proportional to 139,682.28, 192,761.16 and 76,020.12 is: 104,907.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,682.28 : 192,761.16 = 76,020.12 : x
  2. Step 2: Convert to fraction form
    139,682.28/192,761.16 = 76,020.12/x
  3. Step 3: Cross multiply
    139,682.28x = 192,761.16 × 76,020.12
  4. Step 4: Simplify right side
    139,682.28x = 14,653,726,514.54
  5. Step 5: Solve for x
    x = 14,653,726,514.54/139,682.28
  6. Step 6: Final answer
    x = 104,907.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.