Home / 120,679.04-166,540.88-66,968

Finding the Fourth Proportional to 120,679.04, 166,540.88 and 66,968

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Solution

The fourth proportional to 120,679.04, 166,540.88 and 66,968 is: 92,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,679.04 : 166,540.88 = 66,968 : x
  2. Step 2: Convert to fraction form
    120,679.04/166,540.88 = 66,968/x
  3. Step 3: Cross multiply
    120,679.04x = 166,540.88 × 66,968
  4. Step 4: Simplify right side
    120,679.04x = 11,152,909,651.84
  5. Step 5: Solve for x
    x = 11,152,909,651.84/120,679.04
  6. Step 6: Final answer
    x = 92,417.95

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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.