Home / 123,498.88-170,428.05-66,910.25

Finding the Fourth Proportional to 123,498.88, 170,428.05 and 66,910.25

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Solution

The fourth proportional to 123,498.88, 170,428.05 and 66,910.25 is: 92,335.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,498.88 : 170,428.05 = 66,910.25 : x
  2. Step 2: Convert to fraction form
    123,498.88/170,428.05 = 66,910.25/x
  3. Step 3: Cross multiply
    123,498.88x = 170,428.05 × 66,910.25
  4. Step 4: Simplify right side
    123,498.88x = 11,403,383,858.58
  5. Step 5: Solve for x
    x = 11,403,383,858.58/123,498.88
  6. Step 6: Final answer
    x = 92,335.93

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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.