Home / 123,538-170,482.58-66,949.37

Finding the Fourth Proportional to 123,538, 170,482.58 and 66,949.37

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Solution

The fourth proportional to 123,538, 170,482.58 and 66,949.37 is: 92,390.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,538 : 170,482.58 = 66,949.37 : x
  2. Step 2: Convert to fraction form
    123,538/170,482.58 = 66,949.37/x
  3. Step 3: Cross multiply
    123,538x = 170,482.58 × 66,949.37
  4. Step 4: Simplify right side
    123,538x = 11,413,701,326.97
  5. Step 5: Solve for x
    x = 11,413,701,326.97/123,538
  6. Step 6: Final answer
    x = 92,390.21

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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.