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Finding the Fourth Proportional to 120,153.60, 180,244.08 and 35,918.46

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Solution

The fourth proportional to 120,153.60, 180,244.08 and 35,918.46 is: 53,881.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,153.60 : 180,244.08 = 35,918.46 : x
  2. Step 2: Convert to fraction form
    120,153.60/180,244.08 = 35,918.46/x
  3. Step 3: Cross multiply
    120,153.60x = 180,244.08 × 35,918.46
  4. Step 4: Simplify right side
    120,153.60x = 6,474,089,777.72
  5. Step 5: Solve for x
    x = 6,474,089,777.72/120,153.60
  6. Step 6: Final answer
    x = 53,881.78

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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.