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Finding the Fourth Proportional to 113,199.60, 169,993.80 and 80,151.60

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Solution

The fourth proportional to 113,199.60, 169,993.80 and 80,151.60 is: 120,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,199.60 : 169,993.80 = 80,151.60 : x
  2. Step 2: Convert to fraction form
    113,199.60/169,993.80 = 80,151.60/x
  3. Step 3: Cross multiply
    113,199.60x = 169,993.80 × 80,151.60
  4. Step 4: Simplify right side
    113,199.60x = 13,625,275,060.08
  5. Step 5: Solve for x
    x = 13,625,275,060.08/113,199.60
  6. Step 6: Final answer
    x = 120,365.05

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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.