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Finding the Fourth Proportional to 120,994.40, 181,520.40 and 50,837.60

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Solution

The fourth proportional to 120,994.40, 181,520.40 and 50,837.60 is: 76,268.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,994.40 : 181,520.40 = 50,837.60 : x
  2. Step 2: Convert to fraction form
    120,994.40/181,520.40 = 50,837.60/x
  3. Step 3: Cross multiply
    120,994.40x = 181,520.40 × 50,837.60
  4. Step 4: Simplify right side
    120,994.40x = 9,228,061,487.04
  5. Step 5: Solve for x
    x = 9,228,061,487.04/120,994.40
  6. Step 6: Final answer
    x = 76,268.50

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1.5x scale

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.