Home / 213,587.89-320,381.83-80,498.00

Finding the Fourth Proportional to 213,587.89, 320,381.83 and 80,498.00

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Solution

The fourth proportional to 213,587.89, 320,381.83 and 80,498.00 is: 120,747.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,587.89 : 320,381.83 = 80,498.00 : x
  2. Step 2: Convert to fraction form
    213,587.89/320,381.83 = 80,498.00/x
  3. Step 3: Cross multiply
    213,587.89x = 320,381.83 × 80,498.00
  4. Step 4: Simplify right side
    213,587.89x = 25,790,097,452.92
  5. Step 5: Solve for x
    x = 25,790,097,452.92/213,587.89
  6. Step 6: Final answer
    x = 120,747.00

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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.