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Finding the Fourth Proportional to 116,659.20, 160,889.60 and 74,201.60

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Solution

The fourth proportional to 116,659.20, 160,889.60 and 74,201.60 is: 102,334.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,659.20 : 160,889.60 = 74,201.60 : x
  2. Step 2: Convert to fraction form
    116,659.20/160,889.60 = 74,201.60/x
  3. Step 3: Cross multiply
    116,659.20x = 160,889.60 × 74,201.60
  4. Step 4: Simplify right side
    116,659.20x = 11,938,265,743.36
  5. Step 5: Solve for x
    x = 11,938,265,743.36/116,659.20
  6. Step 6: Final answer
    x = 102,334.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.