Home / 149,758.40-206,682.08-91,648.96

Finding the Fourth Proportional to 149,758.40, 206,682.08 and 91,648.96

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Solution

The fourth proportional to 149,758.40, 206,682.08 and 91,648.96 is: 126,485.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,758.40 : 206,682.08 = 91,648.96 : x
  2. Step 2: Convert to fraction form
    149,758.40/206,682.08 = 91,648.96/x
  3. Step 3: Cross multiply
    149,758.40x = 206,682.08 × 91,648.96
  4. Step 4: Simplify right side
    149,758.40x = 18,942,197,682.64
  5. Step 5: Solve for x
    x = 18,942,197,682.64/149,758.40
  6. Step 6: Final answer
    x = 126,485.04

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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.