Home / 123,517.64-170,454.94-66,929

Finding the Fourth Proportional to 123,517.64, 170,454.94 and 66,929

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Solution

The fourth proportional to 123,517.64, 170,454.94 and 66,929 is: 92,362.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,517.64 : 170,454.94 = 66,929 : x
  2. Step 2: Convert to fraction form
    123,517.64/170,454.94 = 66,929/x
  3. Step 3: Cross multiply
    123,517.64x = 170,454.94 × 66,929
  4. Step 4: Simplify right side
    123,517.64x = 11,408,378,679.26
  5. Step 5: Solve for x
    x = 11,408,378,679.26/123,517.64
  6. Step 6: Final answer
    x = 92,362.34

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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.