Home / 205,977.81-309,010.83-63,819.94

Finding the Fourth Proportional to 205,977.81, 309,010.83 and 63,819.94

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Solution

The fourth proportional to 205,977.81, 309,010.83 and 63,819.94 is: 95,743.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,977.81 : 309,010.83 = 63,819.94 : x
  2. Step 2: Convert to fraction form
    205,977.81/309,010.83 = 63,819.94/x
  3. Step 3: Cross multiply
    205,977.81x = 309,010.83 × 63,819.94
  4. Step 4: Simplify right side
    205,977.81x = 19,721,051,857.42
  5. Step 5: Solve for x
    x = 19,721,051,857.42/205,977.81
  6. Step 6: Final answer
    x = 95,743.57

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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.