Home / 133,826.20-200,739.66-45,142

Finding the Fourth Proportional to 133,826.20, 200,739.66 and 45,142

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Solution

The fourth proportional to 133,826.20, 200,739.66 and 45,142 is: 67,713.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,826.20 : 200,739.66 = 45,142 : x
  2. Step 2: Convert to fraction form
    133,826.20/200,739.66 = 45,142/x
  3. Step 3: Cross multiply
    133,826.20x = 200,739.66 × 45,142
  4. Step 4: Simplify right side
    133,826.20x = 9,061,789,731.72
  5. Step 5: Solve for x
    x = 9,061,789,731.72/133,826.20
  6. Step 6: Final answer
    x = 67,713.12

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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.