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Finding the Fourth Proportional to 132,171.74, 198,454.43 and 53,439.74

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Solution

The fourth proportional to 132,171.74, 198,454.43 and 53,439.74 is: 80,239.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,171.74 : 198,454.43 = 53,439.74 : x
  2. Step 2: Convert to fraction form
    132,171.74/198,454.43 = 53,439.74/x
  3. Step 3: Cross multiply
    132,171.74x = 198,454.43 × 53,439.74
  4. Step 4: Simplify right side
    132,171.74x = 10,605,353,141.05
  5. Step 5: Solve for x
    x = 10,605,353,141.05/132,171.74
  6. Step 6: Final answer
    x = 80,239.19

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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.