Home / 206,379.22-284,682.36-129,776.81

Finding the Fourth Proportional to 206,379.22, 284,682.36 and 129,776.81

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Solution

The fourth proportional to 206,379.22, 284,682.36 and 129,776.81 is: 179,015.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,379.22 : 284,682.36 = 129,776.81 : x
  2. Step 2: Convert to fraction form
    206,379.22/284,682.36 = 129,776.81/x
  3. Step 3: Cross multiply
    206,379.22x = 284,682.36 × 129,776.81
  4. Step 4: Simplify right side
    206,379.22x = 36,945,167,860.50
  5. Step 5: Solve for x
    x = 36,945,167,860.50/206,379.22
  6. Step 6: Final answer
    x = 179,015.93

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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.