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Finding the Fourth Proportional to 103,620.60, 155,430.90 and 37,092.60

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Solution

The fourth proportional to 103,620.60, 155,430.90 and 37,092.60 is: 55,638.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,620.60 : 155,430.90 = 37,092.60 : x
  2. Step 2: Convert to fraction form
    103,620.60/155,430.90 = 37,092.60/x
  3. Step 3: Cross multiply
    103,620.60x = 155,430.90 × 37,092.60
  4. Step 4: Simplify right side
    103,620.60x = 5,765,336,201.34
  5. Step 5: Solve for x
    x = 5,765,336,201.34/103,620.60
  6. Step 6: Final answer
    x = 55,638.90

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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.