Home / 206,749.46-285,321.15-116,121.40

Finding the Fourth Proportional to 206,749.46, 285,321.15 and 116,121.40

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Solution

The fourth proportional to 206,749.46, 285,321.15 and 116,121.40 is: 160,251.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,749.46 : 285,321.15 = 116,121.40 : x
  2. Step 2: Convert to fraction form
    206,749.46/285,321.15 = 116,121.40/x
  3. Step 3: Cross multiply
    206,749.46x = 285,321.15 × 116,121.40
  4. Step 4: Simplify right side
    206,749.46x = 33,131,890,674.31
  5. Step 5: Solve for x
    x = 33,131,890,674.31/206,749.46
  6. Step 6: Final answer
    x = 160,251.40

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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.