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Finding the Fourth Proportional to 200,080.58, 300,010.08 and 81,834.96

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Solution

The fourth proportional to 200,080.58, 300,010.08 and 81,834.96 is: 122,707.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,080.58 : 300,010.08 = 81,834.96 : x
  2. Step 2: Convert to fraction form
    200,080.58/300,010.08 = 81,834.96/x
  3. Step 3: Cross multiply
    200,080.58x = 300,010.08 × 81,834.96
  4. Step 4: Simplify right side
    200,080.58x = 24,551,312,180.44
  5. Step 5: Solve for x
    x = 24,551,312,180.44/200,080.58
  6. Step 6: Final answer
    x = 122,707.12

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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.