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Finding the Fourth Proportional to 132,419.60, 198,576.60 and 43,648.40

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Solution

The fourth proportional to 132,419.60, 198,576.60 and 43,648.40 is: 65,455.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,419.60 : 198,576.60 = 43,648.40 : x
  2. Step 2: Convert to fraction form
    132,419.60/198,576.60 = 43,648.40/x
  3. Step 3: Cross multiply
    132,419.60x = 198,576.60 × 43,648.40
  4. Step 4: Simplify right side
    132,419.60x = 8,667,550,867.44
  5. Step 5: Solve for x
    x = 8,667,550,867.44/132,419.60
  6. Step 6: Final answer
    x = 65,455.20

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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.