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Finding the Fourth Proportional to 135,194.40, 202,906.80 and 60,429.60

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Solution

The fourth proportional to 135,194.40, 202,906.80 and 60,429.60 is: 90,695.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,194.40 : 202,906.80 = 60,429.60 : x
  2. Step 2: Convert to fraction form
    135,194.40/202,906.80 = 60,429.60/x
  3. Step 3: Cross multiply
    135,194.40x = 202,906.80 × 60,429.60
  4. Step 4: Simplify right side
    135,194.40x = 12,261,576,761.28
  5. Step 5: Solve for x
    x = 12,261,576,761.28/135,194.40
  6. Step 6: Final answer
    x = 90,695.89

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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.