Home / 100,241.36-138,333-54,922.17

Finding the Fourth Proportional to 100,241.36, 138,333 and 54,922.17

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Solution

The fourth proportional to 100,241.36, 138,333 and 54,922.17 is: 75,792.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,241.36 : 138,333 = 54,922.17 : x
  2. Step 2: Convert to fraction form
    100,241.36/138,333 = 54,922.17/x
  3. Step 3: Cross multiply
    100,241.36x = 138,333 × 54,922.17
  4. Step 4: Simplify right side
    100,241.36x = 7,597,548,542.61
  5. Step 5: Solve for x
    x = 7,597,548,542.61/100,241.36
  6. Step 6: Final answer
    x = 75,792.55

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1.5x scale

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.