Home / 206,830.20-285,405.42-116,165.40

Finding the Fourth Proportional to 206,830.20, 285,405.42 and 116,165.40

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Solution

The fourth proportional to 206,830.20, 285,405.42 and 116,165.40 is: 160,296.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,830.20 : 285,405.42 = 116,165.40 : x
  2. Step 2: Convert to fraction form
    206,830.20/285,405.42 = 116,165.40/x
  3. Step 3: Cross multiply
    206,830.20x = 285,405.42 × 116,165.40
  4. Step 4: Simplify right side
    206,830.20x = 33,154,234,776.47
  5. Step 5: Solve for x
    x = 33,154,234,776.47/206,830.20
  6. Step 6: Final answer
    x = 160,296.88

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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.