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Finding the Fourth Proportional to 135,881.25, 203,821.60 and 36,051.45

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Solution

The fourth proportional to 135,881.25, 203,821.60 and 36,051.45 is: 54,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,881.25 : 203,821.60 = 36,051.45 : x
  2. Step 2: Convert to fraction form
    135,881.25/203,821.60 = 36,051.45/x
  3. Step 3: Cross multiply
    135,881.25x = 203,821.60 × 36,051.45
  4. Step 4: Simplify right side
    135,881.25x = 7,348,063,021.95
  5. Step 5: Solve for x
    x = 7,348,063,021.95/135,881.25
  6. Step 6: Final answer
    x = 54,077.10

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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.