Home / 100,998.24-139,377.54-55,676.98

Finding the Fourth Proportional to 100,998.24, 139,377.54 and 55,676.98

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Solution

The fourth proportional to 100,998.24, 139,377.54 and 55,676.98 is: 76,834.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,998.24 : 139,377.54 = 55,676.98 : x
  2. Step 2: Convert to fraction form
    100,998.24/139,377.54 = 55,676.98/x
  3. Step 3: Cross multiply
    100,998.24x = 139,377.54 × 55,676.98
  4. Step 4: Simplify right side
    100,998.24x = 7,760,120,507.03
  5. Step 5: Solve for x
    x = 7,760,120,507.03/100,998.24
  6. Step 6: Final answer
    x = 76,834.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.