Home / 259,193.72-388,732.26-92,981.72

Finding the Fourth Proportional to 259,193.72, 388,732.26 and 92,981.72

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Solution

The fourth proportional to 259,193.72, 388,732.26 and 92,981.72 is: 139,451.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,193.72 : 388,732.26 = 92,981.72 : x
  2. Step 2: Convert to fraction form
    259,193.72/388,732.26 = 92,981.72/x
  3. Step 3: Cross multiply
    259,193.72x = 388,732.26 × 92,981.72
  4. Step 4: Simplify right side
    259,193.72x = 36,144,995,474.80
  5. Step 5: Solve for x
    x = 36,144,995,474.80/259,193.72
  6. Step 6: Final answer
    x = 139,451.66

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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.