Home / 151,621.20-209,232.72-84,553.20

Finding the Fourth Proportional to 151,621.20, 209,232.72 and 84,553.20

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Solution

The fourth proportional to 151,621.20, 209,232.72 and 84,553.20 is: 116,680.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,621.20 : 209,232.72 = 84,553.20 : x
  2. Step 2: Convert to fraction form
    151,621.20/209,232.72 = 84,553.20/x
  3. Step 3: Cross multiply
    151,621.20x = 209,232.72 × 84,553.20
  4. Step 4: Simplify right side
    151,621.20x = 17,691,296,020.70
  5. Step 5: Solve for x
    x = 17,691,296,020.70/151,621.20
  6. Step 6: Final answer
    x = 116,680.89

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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.