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Finding the Fourth Proportional to 121,469.60, 182,204.40 and 105,917.60

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Solution

The fourth proportional to 121,469.60, 182,204.40 and 105,917.60 is: 158,876.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,469.60 : 182,204.40 = 105,917.60 : x
  2. Step 2: Convert to fraction form
    121,469.60/182,204.40 = 105,917.60/x
  3. Step 3: Cross multiply
    121,469.60x = 182,204.40 × 105,917.60
  4. Step 4: Simplify right side
    121,469.60x = 19,298,652,757.44
  5. Step 5: Solve for x
    x = 19,298,652,757.44/121,469.60
  6. Step 6: Final answer
    x = 158,876.40

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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.