Home / 140,883.11-194,438.62-87,185.42

Finding the Fourth Proportional to 140,883.11, 194,438.62 and 87,185.42

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Solution

The fourth proportional to 140,883.11, 194,438.62 and 87,185.42 is: 120,328.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,883.11 : 194,438.62 = 87,185.42 : x
  2. Step 2: Convert to fraction form
    140,883.11/194,438.62 = 87,185.42/x
  3. Step 3: Cross multiply
    140,883.11x = 194,438.62 × 87,185.42
  4. Step 4: Simplify right side
    140,883.11x = 16,952,211,776.73
  5. Step 5: Solve for x
    x = 16,952,211,776.73/140,883.11
  6. Step 6: Final answer
    x = 120,328.21

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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.