Home / 213,789.06-320,776.62-134,009.86

Finding the Fourth Proportional to 213,789.06, 320,776.62 and 134,009.86

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Solution

The fourth proportional to 213,789.06, 320,776.62 and 134,009.86 is: 201,073.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,789.06 : 320,776.62 = 134,009.86 : x
  2. Step 2: Convert to fraction form
    213,789.06/320,776.62 = 134,009.86/x
  3. Step 3: Cross multiply
    213,789.06x = 320,776.62 × 134,009.86
  4. Step 4: Simplify right side
    213,789.06x = 42,987,229,937.47
  5. Step 5: Solve for x
    x = 42,987,229,937.47/213,789.06
  6. Step 6: Final answer
    x = 201,073.10

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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.