Home / 135,725.40-203,523.29-79,582.61

Finding the Fourth Proportional to 135,725.40, 203,523.29 and 79,582.61

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Solution

The fourth proportional to 135,725.40, 203,523.29 and 79,582.61 is: 119,335.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,725.40 : 203,523.29 = 79,582.61 : x
  2. Step 2: Convert to fraction form
    135,725.40/203,523.29 = 79,582.61/x
  3. Step 3: Cross multiply
    135,725.40x = 203,523.29 × 79,582.61
  4. Step 4: Simplify right side
    135,725.40x = 16,196,913,198.46
  5. Step 5: Solve for x
    x = 16,196,913,198.46/135,725.40
  6. Step 6: Final answer
    x = 119,335.90

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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.