Home / 109,685.85-164,507.96-53,469.42

Finding the Fourth Proportional to 109,685.85, 164,507.96 and 53,469.42

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Solution

The fourth proportional to 109,685.85, 164,507.96 and 53,469.42 is: 80,193.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,685.85 : 164,507.96 = 53,469.42 : x
  2. Step 2: Convert to fraction form
    109,685.85/164,507.96 = 53,469.42/x
  3. Step 3: Cross multiply
    109,685.85x = 164,507.96 × 53,469.42
  4. Step 4: Simplify right side
    109,685.85x = 8,796,144,939.24
  5. Step 5: Solve for x
    x = 8,796,144,939.24/109,685.85
  6. Step 6: Final answer
    x = 80,193.98

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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.