Home / 113,764.30-170,786.85-71,644.30

Finding the Fourth Proportional to 113,764.30, 170,786.85 and 71,644.30

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Solution

The fourth proportional to 113,764.30, 170,786.85 and 71,644.30 is: 107,554.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,764.30 : 170,786.85 = 71,644.30 : x
  2. Step 2: Convert to fraction form
    113,764.30/170,786.85 = 71,644.30/x
  3. Step 3: Cross multiply
    113,764.30x = 170,786.85 × 71,644.30
  4. Step 4: Simplify right side
    113,764.30x = 12,235,904,317.46
  5. Step 5: Solve for x
    x = 12,235,904,317.46/113,764.30
  6. Step 6: Final answer
    x = 107,554.87

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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.