Home / 149,110.20-205,753.37-100,817.19

Finding the Fourth Proportional to 149,110.20, 205,753.37 and 100,817.19

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Solution

The fourth proportional to 149,110.20, 205,753.37 and 100,817.19 is: 139,115.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,110.20 : 205,753.37 = 100,817.19 : x
  2. Step 2: Convert to fraction form
    149,110.20/205,753.37 = 100,817.19/x
  3. Step 3: Cross multiply
    149,110.20x = 205,753.37 × 100,817.19
  4. Step 4: Simplify right side
    149,110.20x = 20,743,476,092.34
  5. Step 5: Solve for x
    x = 20,743,476,092.34/149,110.20
  6. Step 6: Final answer
    x = 139,115.07

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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.