Home / 205,091.61-307,668.18-71,948.43

Finding the Fourth Proportional to 205,091.61, 307,668.18 and 71,948.43

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Solution

The fourth proportional to 205,091.61, 307,668.18 and 71,948.43 is: 107,933.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,091.61 : 307,668.18 = 71,948.43 : x
  2. Step 2: Convert to fraction form
    205,091.61/307,668.18 = 71,948.43/x
  3. Step 3: Cross multiply
    205,091.61x = 307,668.18 × 71,948.43
  4. Step 4: Simplify right side
    205,091.61x = 22,136,242,511.96
  5. Step 5: Solve for x
    x = 22,136,242,511.96/205,091.61
  6. Step 6: Final answer
    x = 107,933.44

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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.