Home / 206,104.05-309,156.33-56,345.64

Finding the Fourth Proportional to 206,104.05, 309,156.33 and 56,345.64

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Solution

The fourth proportional to 206,104.05, 309,156.33 and 56,345.64 is: 84,518.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,104.05 : 309,156.33 = 56,345.64 : x
  2. Step 2: Convert to fraction form
    206,104.05/309,156.33 = 56,345.64/x
  3. Step 3: Cross multiply
    206,104.05x = 309,156.33 × 56,345.64
  4. Step 4: Simplify right side
    206,104.05x = 17,419,611,273.90
  5. Step 5: Solve for x
    x = 17,419,611,273.90/206,104.05
  6. Step 6: Final answer
    x = 84,518.53

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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.