Home / 230,176.08-345,265.20-80,415.72

Finding the Fourth Proportional to 230,176.08, 345,265.20 and 80,415.72

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Solution

The fourth proportional to 230,176.08, 345,265.20 and 80,415.72 is: 120,623.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,176.08 : 345,265.20 = 80,415.72 : x
  2. Step 2: Convert to fraction form
    230,176.08/345,265.20 = 80,415.72/x
  3. Step 3: Cross multiply
    230,176.08x = 345,265.20 × 80,415.72
  4. Step 4: Simplify right side
    230,176.08x = 27,764,749,648.94
  5. Step 5: Solve for x
    x = 27,764,749,648.94/230,176.08
  6. Step 6: Final answer
    x = 120,623.96

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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.