Home / 123,241.88-170,073.79-66,653.25

Finding the Fourth Proportional to 123,241.88, 170,073.79 and 66,653.25

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Solution

The fourth proportional to 123,241.88, 170,073.79 and 66,653.25 is: 91,981.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,241.88 : 170,073.79 = 66,653.25 : x
  2. Step 2: Convert to fraction form
    123,241.88/170,073.79 = 66,653.25/x
  3. Step 3: Cross multiply
    123,241.88x = 170,073.79 × 66,653.25
  4. Step 4: Simplify right side
    123,241.88x = 11,335,970,676.68
  5. Step 5: Solve for x
    x = 11,335,970,676.68/123,241.88
  6. Step 6: Final answer
    x = 91,981.49

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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.