Home / 205,971.62-308,926.64-71,056.94

Finding the Fourth Proportional to 205,971.62, 308,926.64 and 71,056.94

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Solution

The fourth proportional to 205,971.62, 308,926.64 and 71,056.94 is: 106,574.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,971.62 : 308,926.64 = 71,056.94 : x
  2. Step 2: Convert to fraction form
    205,971.62/308,926.64 = 71,056.94/x
  3. Step 3: Cross multiply
    205,971.62x = 308,926.64 × 71,056.94
  4. Step 4: Simplify right side
    205,971.62x = 21,951,380,355.89
  5. Step 5: Solve for x
    x = 21,951,380,355.89/205,971.62
  6. Step 6: Final answer
    x = 106,574.78

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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.