Home / 149,405.16-206,179.12-82,337.16

Finding the Fourth Proportional to 149,405.16, 206,179.12 and 82,337.16

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Solution

The fourth proportional to 149,405.16, 206,179.12 and 82,337.16 is: 113,625.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,405.16 : 206,179.12 = 82,337.16 : x
  2. Step 2: Convert to fraction form
    149,405.16/206,179.12 = 82,337.16/x
  3. Step 3: Cross multiply
    149,405.16x = 206,179.12 × 82,337.16
  4. Step 4: Simplify right side
    149,405.16x = 16,976,203,192.10
  5. Step 5: Solve for x
    x = 16,976,203,192.10/149,405.16
  6. Step 6: Final answer
    x = 113,625.28

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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.