Home / 219,149.15-328,596.96-85,873.37

Finding the Fourth Proportional to 219,149.15, 328,596.96 and 85,873.37

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Solution

The fourth proportional to 219,149.15, 328,596.96 and 85,873.37 is: 128,760.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,149.15 : 328,596.96 = 85,873.37 : x
  2. Step 2: Convert to fraction form
    219,149.15/328,596.96 = 85,873.37/x
  3. Step 3: Cross multiply
    219,149.15x = 328,596.96 × 85,873.37
  4. Step 4: Simplify right side
    219,149.15x = 28,217,728,326.96
  5. Step 5: Solve for x
    x = 28,217,728,326.96/219,149.15
  6. Step 6: Final answer
    x = 128,760.38

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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.