Home / 132,979.60-199,469.40-122,093.20

Finding the Fourth Proportional to 132,979.60, 199,469.40 and 122,093.20

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Solution

The fourth proportional to 132,979.60, 199,469.40 and 122,093.20 is: 183,139.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,979.60 : 199,469.40 = 122,093.20 : x
  2. Step 2: Convert to fraction form
    132,979.60/199,469.40 = 122,093.20/x
  3. Step 3: Cross multiply
    132,979.60x = 199,469.40 × 122,093.20
  4. Step 4: Simplify right side
    132,979.60x = 24,353,857,348.08
  5. Step 5: Solve for x
    x = 24,353,857,348.08/132,979.60
  6. Step 6: Final answer
    x = 183,139.80

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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.