Home / 230,414.05-345,657.53-80,650.72

Finding the Fourth Proportional to 230,414.05, 345,657.53 and 80,650.72

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Solution

The fourth proportional to 230,414.05, 345,657.53 and 80,650.72 is: 120,988.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,414.05 : 345,657.53 = 80,650.72 : x
  2. Step 2: Convert to fraction form
    230,414.05/345,657.53 = 80,650.72/x
  3. Step 3: Cross multiply
    230,414.05x = 345,657.53 × 80,650.72
  4. Step 4: Simplify right side
    230,414.05x = 27,877,528,667.92
  5. Step 5: Solve for x
    x = 27,877,528,667.92/230,414.05
  6. Step 6: Final answer
    x = 120,988.84

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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.