Home / 213,621.98-320,623.04-113,864.54

Finding the Fourth Proportional to 213,621.98, 320,623.04 and 113,864.54

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Solution

The fourth proportional to 213,621.98, 320,623.04 and 113,864.54 is: 170,898.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,621.98 : 320,623.04 = 113,864.54 : x
  2. Step 2: Convert to fraction form
    213,621.98/320,623.04 = 113,864.54/x
  3. Step 3: Cross multiply
    213,621.98x = 320,623.04 × 113,864.54
  4. Step 4: Simplify right side
    213,621.98x = 36,507,593,644.55
  5. Step 5: Solve for x
    x = 36,507,593,644.55/213,621.98
  6. Step 6: Final answer
    x = 170,898.12

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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.