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Finding the Fourth Proportional to 110,057.60, 165,086.40 and 83,813.60

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Solution

The fourth proportional to 110,057.60, 165,086.40 and 83,813.60 is: 125,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,057.60 : 165,086.40 = 83,813.60 : x
  2. Step 2: Convert to fraction form
    110,057.60/165,086.40 = 83,813.60/x
  3. Step 3: Cross multiply
    110,057.60x = 165,086.40 × 83,813.60
  4. Step 4: Simplify right side
    110,057.60x = 13,836,485,495.04
  5. Step 5: Solve for x
    x = 13,836,485,495.04/110,057.60
  6. Step 6: Final answer
    x = 125,720.40

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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.