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Finding the Fourth Proportional to 136,154.40, 204,231.60 and 82,701.60

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Solution

The fourth proportional to 136,154.40, 204,231.60 and 82,701.60 is: 124,052.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,154.40 : 204,231.60 = 82,701.60 : x
  2. Step 2: Convert to fraction form
    136,154.40/204,231.60 = 82,701.60/x
  3. Step 3: Cross multiply
    136,154.40x = 204,231.60 × 82,701.60
  4. Step 4: Simplify right side
    136,154.40x = 16,890,280,090.56
  5. Step 5: Solve for x
    x = 16,890,280,090.56/136,154.40
  6. Step 6: Final answer
    x = 124,052.40

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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.