Home / 107,818.12-161,513.26-50,813.98

Finding the Fourth Proportional to 107,818.12, 161,513.26 and 50,813.98

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Solution

The fourth proportional to 107,818.12, 161,513.26 and 50,813.98 is: 76,120.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,818.12 : 161,513.26 = 50,813.98 : x
  2. Step 2: Convert to fraction form
    107,818.12/161,513.26 = 50,813.98/x
  3. Step 3: Cross multiply
    107,818.12x = 161,513.26 × 50,813.98
  4. Step 4: Simplify right side
    107,818.12x = 8,207,131,563.37
  5. Step 5: Solve for x
    x = 8,207,131,563.37/107,818.12
  6. Step 6: Final answer
    x = 76,120.15

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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.