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Finding the Fourth Proportional to 201,078.05, 301,550.10 and 81,104.02

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Solution

The fourth proportional to 201,078.05, 301,550.10 and 81,104.02 is: 121,629.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,078.05 : 301,550.10 = 81,104.02 : x
  2. Step 2: Convert to fraction form
    201,078.05/301,550.10 = 81,104.02/x
  3. Step 3: Cross multiply
    201,078.05x = 301,550.10 × 81,104.02
  4. Step 4: Simplify right side
    201,078.05x = 24,456,924,283.39
  5. Step 5: Solve for x
    x = 24,456,924,283.39/201,078.05
  6. Step 6: Final answer
    x = 121,629.01

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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.