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Finding the Fourth Proportional to 110,853.60, 166,280.40 and 66,530.40

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Solution

The fourth proportional to 110,853.60, 166,280.40 and 66,530.40 is: 99,795.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,853.60 : 166,280.40 = 66,530.40 : x
  2. Step 2: Convert to fraction form
    110,853.60/166,280.40 = 66,530.40/x
  3. Step 3: Cross multiply
    110,853.60x = 166,280.40 × 66,530.40
  4. Step 4: Simplify right side
    110,853.60x = 11,062,701,524.16
  5. Step 5: Solve for x
    x = 11,062,701,524.16/110,853.60
  6. Step 6: Final answer
    x = 99,795.60

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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.