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Finding the Fourth Proportional to 133,855.56, 200,820.06 and 108,833.40

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Solution

The fourth proportional to 133,855.56, 200,820.06 and 108,833.40 is: 163,279.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,855.56 : 200,820.06 = 108,833.40 : x
  2. Step 2: Convert to fraction form
    133,855.56/200,820.06 = 108,833.40/x
  3. Step 3: Cross multiply
    133,855.56x = 200,820.06 × 108,833.40
  4. Step 4: Simplify right side
    133,855.56x = 21,855,929,918.00
  5. Step 5: Solve for x
    x = 21,855,929,918.00/133,855.56
  6. Step 6: Final answer
    x = 163,279.96

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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.