Home / 149,379.36-206,133.84-82,311.36

Finding the Fourth Proportional to 149,379.36, 206,133.84 and 82,311.36

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Solution

The fourth proportional to 149,379.36, 206,133.84 and 82,311.36 is: 113,584.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,379.36 : 206,133.84 = 82,311.36 : x
  2. Step 2: Convert to fraction form
    149,379.36/206,133.84 = 82,311.36/x
  3. Step 3: Cross multiply
    149,379.36x = 206,133.84 × 82,311.36
  4. Step 4: Simplify right side
    149,379.36x = 16,967,156,712.42
  5. Step 5: Solve for x
    x = 16,967,156,712.42/149,379.36
  6. Step 6: Final answer
    x = 113,584.34

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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.