Home / 120,855.05-166,806.65-67,158.53

Finding the Fourth Proportional to 120,855.05, 166,806.65 and 67,158.53

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Solution

The fourth proportional to 120,855.05, 166,806.65 and 67,158.53 is: 92,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,855.05 : 166,806.65 = 67,158.53 : x
  2. Step 2: Convert to fraction form
    120,855.05/166,806.65 = 67,158.53/x
  3. Step 3: Cross multiply
    120,855.05x = 166,806.65 × 67,158.53
  4. Step 4: Simplify right side
    120,855.05x = 11,202,489,072.43
  5. Step 5: Solve for x
    x = 11,202,489,072.43/120,855.05
  6. Step 6: Final answer
    x = 92,693.60

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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.