Home / 213,480.72-320,122.64-63,682.16

Finding the Fourth Proportional to 213,480.72, 320,122.64 and 63,682.16

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Solution

The fourth proportional to 213,480.72, 320,122.64 and 63,682.16 is: 95,493.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,480.72 : 320,122.64 = 63,682.16 : x
  2. Step 2: Convert to fraction form
    213,480.72/320,122.64 = 63,682.16/x
  3. Step 3: Cross multiply
    213,480.72x = 320,122.64 × 63,682.16
  4. Step 4: Simplify right side
    213,480.72x = 20,386,101,180.10
  5. Step 5: Solve for x
    x = 20,386,101,180.10/213,480.72
  6. Step 6: Final answer
    x = 95,493.87

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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.