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Finding the Fourth Proportional to 133,216.60, 200,043.60 and 89,039.20

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Solution

The fourth proportional to 133,216.60, 200,043.60 and 89,039.20 is: 133,704.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,216.60 : 200,043.60 = 89,039.20 : x
  2. Step 2: Convert to fraction form
    133,216.60/200,043.60 = 89,039.20/x
  3. Step 3: Cross multiply
    133,216.60x = 200,043.60 × 89,039.20
  4. Step 4: Simplify right side
    133,216.60x = 17,811,722,109.12
  5. Step 5: Solve for x
    x = 17,811,722,109.12/133,216.60
  6. Step 6: Final answer
    x = 133,704.97

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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.