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Finding the Fourth Proportional to 135,978.48, 203,897.67 and 61,034.37

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Solution

The fourth proportional to 135,978.48, 203,897.67 and 61,034.37 is: 91,520.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,978.48 : 203,897.67 = 61,034.37 : x
  2. Step 2: Convert to fraction form
    135,978.48/203,897.67 = 61,034.37/x
  3. Step 3: Cross multiply
    135,978.48x = 203,897.67 × 61,034.37
  4. Step 4: Simplify right side
    135,978.48x = 12,444,765,832.92
  5. Step 5: Solve for x
    x = 12,444,765,832.92/135,978.48
  6. Step 6: Final answer
    x = 91,520.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.