Home / 205,142.23-307,850.73-72,022.87

Finding the Fourth Proportional to 205,142.23, 307,850.73 and 72,022.87

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Solution

The fourth proportional to 205,142.23, 307,850.73 and 72,022.87 is: 108,082.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,142.23 : 307,850.73 = 72,022.87 : x
  2. Step 2: Convert to fraction form
    205,142.23/307,850.73 = 72,022.87/x
  3. Step 3: Cross multiply
    205,142.23x = 307,850.73 × 72,022.87
  4. Step 4: Simplify right side
    205,142.23x = 22,172,293,106.20
  5. Step 5: Solve for x
    x = 22,172,293,106.20/205,142.23
  6. Step 6: Final answer
    x = 108,082.54

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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.