Home / 100,241.47-138,333.18-54,922.33

Finding the Fourth Proportional to 100,241.47, 138,333.18 and 54,922.33

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Solution

The fourth proportional to 100,241.47, 138,333.18 and 54,922.33 is: 75,792.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,241.47 : 138,333.18 = 54,922.33 : x
  2. Step 2: Convert to fraction form
    100,241.47/138,333.18 = 54,922.33/x
  3. Step 3: Cross multiply
    100,241.47x = 138,333.18 × 54,922.33
  4. Step 4: Simplify right side
    100,241.47x = 7,597,580,561.91
  5. Step 5: Solve for x
    x = 7,597,580,561.91/100,241.47
  6. Step 6: Final answer
    x = 75,792.79

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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.