Home / 214,209.05-320,975.62-79,087.31

Finding the Fourth Proportional to 214,209.05, 320,975.62 and 79,087.31

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Solution

The fourth proportional to 214,209.05, 320,975.62 and 79,087.31 is: 118,506.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,209.05 : 320,975.62 = 79,087.31 : x
  2. Step 2: Convert to fraction form
    214,209.05/320,975.62 = 79,087.31/x
  3. Step 3: Cross multiply
    214,209.05x = 320,975.62 × 79,087.31
  4. Step 4: Simplify right side
    214,209.05x = 25,385,098,361.38
  5. Step 5: Solve for x
    x = 25,385,098,361.38/214,209.05
  6. Step 6: Final answer
    x = 118,506.19

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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.