Home / 214,207.05-320,972.62-79,085.31

Finding the Fourth Proportional to 214,207.05, 320,972.62 and 79,085.31

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Solution

The fourth proportional to 214,207.05, 320,972.62 and 79,085.31 is: 118,503.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,207.05 : 320,972.62 = 79,085.31 : x
  2. Step 2: Convert to fraction form
    214,207.05/320,972.62 = 79,085.31/x
  3. Step 3: Cross multiply
    214,207.05x = 320,972.62 × 79,085.31
  4. Step 4: Simplify right side
    214,207.05x = 25,384,219,154.21
  5. Step 5: Solve for x
    x = 25,384,219,154.21/214,207.05
  6. Step 6: Final answer
    x = 118,503.19

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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.