Home / 116,211.20-174,489.60-89,945.60

Finding the Fourth Proportional to 116,211.20, 174,489.60 and 89,945.60

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Solution

The fourth proportional to 116,211.20, 174,489.60 and 89,945.60 is: 135,052.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,211.20 : 174,489.60 = 89,945.60 : x
  2. Step 2: Convert to fraction form
    116,211.20/174,489.60 = 89,945.60/x
  3. Step 3: Cross multiply
    116,211.20x = 174,489.60 × 89,945.60
  4. Step 4: Simplify right side
    116,211.20x = 15,694,571,765.76
  5. Step 5: Solve for x
    x = 15,694,571,765.76/116,211.20
  6. Step 6: Final answer
    x = 135,052.14

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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.